Finding the Fourth Proportional to 121,669,471.44, 167,910,594.30 and 69,475,273.02
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Solution
The fourth proportional to 121,669,471.44, 167,910,594.30 and 69,475,273.02 is: 95,879,716.12
Step by Step Solution
- Step 1: Write the proportion equation
121,669,471.44 : 167,910,594.30 = 69,475,273.02 : x - Step 2: Convert to fraction form
121,669,471.44/167,910,594.30 = 69,475,273.02/x - Step 3: Cross multiply
121,669,471.44x = 167,910,594.30 × 69,475,273.02 - Step 4: Simplify right side
121,669,471.44x = 11,665,634,381,942,956 - Step 5: Solve for x
x = 11,665,634,381,942,956/121,669,471.44 - Step 6: Final answer
x = 95,879,716.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.