Finding the Fourth Proportional to 84,940,596.90, 126,790,796.70 and 72,887,515.02
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Solution
The fourth proportional to 84,940,596.90, 126,790,796.70 and 72,887,515.02 is: 108,799,165.96
Step by Step Solution
- Step 1: Write the proportion equation
84,940,596.90 : 126,790,796.70 = 72,887,515.02 : x - Step 2: Convert to fraction form
84,940,596.90/126,790,796.70 = 72,887,515.02/x - Step 3: Cross multiply
84,940,596.90x = 126,790,796.70 × 72,887,515.02 - Step 4: Simplify right side
84,940,596.90x = 9,241,466,098,869,016 - Step 5: Solve for x
x = 9,241,466,098,869,016/84,940,596.90 - Step 6: Final answer
x = 108,799,165.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.