To determine which country has the greatest and least population density among the U.S., Romania, and Ghana, we need to calculate the population density for each country. Population density is defined as the population divided by the area.
Let's break down the calculations step-by-step for each country.
1. Population Density of the U.S.
- Population: 272,648,000
- Area: 9,364,520 square kilometers
[tex]\[
\text{Population Density of U.S.} = \frac{\text{Population}}{\text{Area}} = \frac{272,648,000}{9,364,520} \approx 29.115 \text{ people per square kilometer}
\][/tex]
2. Population Density of Romania
- Population: 22,609,000
- Area: 237,391 square kilometers
[tex]\[
\text{Population Density of Romania} = \frac{\text{Population}}{\text{Area}} = \frac{22,609,000}{237,391} \approx 95.239 \text{ people per square kilometer}
\][/tex]
3. Population Density of Ghana
- Population: 18,339,000
- Area: 237,533 square kilometers
[tex]\[
\text{Population Density of Ghana} = \frac{\text{Population}}{\text{Area}} = \frac{18,339,000}{237,533} \approx 77.206 \text{ people per square kilometer}
\][/tex]
Now, we can compare the population densities:
- U.S.: 29.115 people per square kilometer
- Romania: 95.239 people per square kilometer
- Ghana: 77.206 people per square kilometer
From these calculations, we can see that:
- Romania has the greatest population density at approximately 95.239 people per square kilometer.
- The U.S. has the least population density at approximately 29.115 people per square kilometer.
Therefore, based on the population densities calculated, Romania has the greatest population density, and the U.S. has the least population density.
