Finding the Fourth Proportional to 71,413,778.70, 98,551,078.11 and 38,818,730.70
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Solution
The fourth proportional to 71,413,778.70, 98,551,078.11 and 38,818,730.70 is: 53,569,882.89
Step by Step Solution
- Step 1: Write the proportion equation
71,413,778.70 : 98,551,078.11 = 38,818,730.70 : x - Step 2: Convert to fraction form
71,413,778.70/98,551,078.11 = 38,818,730.70/x - Step 3: Cross multiply
71,413,778.70x = 98,551,078.11 × 38,818,730.70 - Step 4: Simplify right side
71,413,778.70x = 3,825,627,761,346,755 - Step 5: Solve for x
x = 3,825,627,761,346,755/71,413,778.70 - Step 6: Final answer
x = 53,569,882.89
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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.