Finding the Fourth Proportional to 78,732,124.80, 118,098,187.20 and 62,292,883.20
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Solution
The fourth proportional to 78,732,124.80, 118,098,187.20 and 62,292,883.20 is: 93,439,324.80
Step by Step Solution
- Step 1: Write the proportion equation
78,732,124.80 : 118,098,187.20 = 62,292,883.20 : x - Step 2: Convert to fraction form
78,732,124.80/118,098,187.20 = 62,292,883.20/x - Step 3: Cross multiply
78,732,124.80x = 118,098,187.20 × 62,292,883.20 - Step 4: Simplify right side
78,732,124.80x = 7,356,676,581,381,336 - Step 5: Solve for x
x = 7,356,676,581,381,336/78,732,124.80 - Step 6: Final answer
x = 93,439,324.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.