Finding the Fourth Proportional to 497,341,306.15, 686,318,979.24 and 274,318,198.13
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Solution
The fourth proportional to 497,341,306.15, 686,318,979.24 and 274,318,198.13 is: 378,552,481.77
Step by Step Solution
- Step 1: Write the proportion equation
497,341,306.15 : 686,318,979.24 = 274,318,198.13 : x - Step 2: Convert to fraction form
497,341,306.15/686,318,979.24 = 274,318,198.13/x - Step 3: Cross multiply
497,341,306.15x = 686,318,979.24 × 274,318,198.13 - Step 4: Simplify right side
497,341,306.15x = 188,269,785,729,253,472 - Step 5: Solve for x
x = 188,269,785,729,253,472/497,341,306.15 - Step 6: Final answer
x = 378,552,481.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.