To calculate the population density of each country, we can use the formula:
\[ \text{Population Density} = \frac{\text{Population}}{\text{Area}} \]
We will calculate the population density for each country using the data provided.
United States
- Population: 272,648,000
- Area: 9,364,520 square km
\[ \text{Population Density (U.S.)} = \frac{272,648,000}{9,364,520} \approx 29.1 \text{ people per square km} \]
Romania
- Population: 22,609,000
- Area: 237,391 square km
\[ \text{Population Density (Romania)} = \frac{22,609,000}{237,391} \approx 95.4 \text{ people per square km} \]
Ghana
- Population: 18,339,000
- Area: 237,533 square km
\[ \text{Population Density (Ghana)} = \frac{18,339,000}{237,533} \approx 77.1 \text{ people per square km} \]
Summary of Population Densities:
- U.S.: 29.1 people/sq km
- Romania: 95.4 people/sq km
- Ghana: 77.1 people/sq km
Conclusion:
- The country with the greatest population density is Romania with approximately 95.4 people per square km.
- The country with the least population density is the United States with approximately 29.1 people per square km.
This proof is derived from the calculated population densities based on the given population and area for each country.
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