Finding the Fourth Proportional to 87,952,553.92, 121,377,767.70 and 53,138,518.42
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Solution
The fourth proportional to 87,952,553.92, 121,377,767.70 and 53,138,518.42 is: 73,333,114.93
Step by Step Solution
- Step 1: Write the proportion equation
87,952,553.92 : 121,377,767.70 = 53,138,518.42 : x - Step 2: Convert to fraction form
87,952,553.92/121,377,767.70 = 53,138,518.42/x - Step 3: Cross multiply
87,952,553.92x = 121,377,767.70 × 53,138,518.42 - Step 4: Simplify right side
87,952,553.92x = 6,449,834,744,704,931 - Step 5: Solve for x
x = 6,449,834,744,704,931/87,952,553.92 - Step 6: Final answer
x = 73,333,114.93
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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.