Finding the Fourth Proportional to 391,252,441.24, 586,842,678.42 and 132,438,079
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Solution
The fourth proportional to 391,252,441.24, 586,842,678.42 and 132,438,079 is: 198,644,938.19
Step by Step Solution
- Step 1: Write the proportion equation
391,252,441.24 : 586,842,678.42 = 132,438,079 : x - Step 2: Convert to fraction form
391,252,441.24/586,842,678.42 = 132,438,079/x - Step 3: Cross multiply
391,252,441.24x = 586,842,678.42 × 132,438,079 - Step 4: Simplify right side
391,252,441.24x = 77,720,317,005,159,552 - Step 5: Solve for x
x = 77,720,317,005,159,552/391,252,441.24 - Step 6: Final answer
x = 198,644,938.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.