Finding the Fourth Proportional to 498,614,375.97, 688,102,471.98 and 272,565,850.59
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Solution
The fourth proportional to 498,614,375.97, 688,102,471.98 and 272,565,850.59 is: 376,148,872.98
Step by Step Solution
- Step 1: Write the proportion equation
498,614,375.97 : 688,102,471.98 = 272,565,850.59 : x - Step 2: Convert to fraction form
498,614,375.97/688,102,471.98 = 272,565,850.59/x - Step 3: Cross multiply
498,614,375.97x = 688,102,471.98 × 272,565,850.59 - Step 4: Simplify right side
498,614,375.97x = 187,553,235,570,029,440 - Step 5: Solve for x
x = 187,553,235,570,029,440/498,614,375.97 - Step 6: Final answer
x = 376,148,872.98
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1.5x scale
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.