Dependency Ratio Calculation

The dependency ratio measures the ratio of dependents (people too young or too old to work) to the working-age population.

Formula

The formula for the dependency ratio is:

$ \text{Dependency Ratio} = \left( \frac{\text{Population aged 0-14} + \text{Population aged 65+}}{\text{Population aged 15-64}} \right) \times 100 $

Applying the Data

Given data:

• Population aged 0-14 years: 391,558,367
• Population aged 15–64 years: 856,076,200
• Population aged 65+ years: 71,943,390

Step-by-Step Calculation

1. Calculate the total dependent population:

   $ \text{Dependents} = 391,558,367 + 71,943,390 = 463,501,757 $

2. Identify the working-age population:

   $ \text{Working Population} = 856,076,200 $

3. Calculate the dependency ratio:

   $ \text{Dependency Ratio} = \left( \frac{463,501,757}{856,076,200} \right) \times 100 $

   $ \text{Dependency Ratio} \approx 0.541428 \times 100 $

   $ \text{Dependency Ratio} \approx 54.14\% $

Rounding to one decimal place, the dependency ratio is approximately 54.1%.