Finding the Fourth Proportional to 86,231,497.70, 129,347,246.55 and 86,231,497.70
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Solution
The fourth proportional to 86,231,497.70, 129,347,246.55 and 86,231,497.70 is: 129,347,246.55
Step by Step Solution
- Step 1: Write the proportion equation
86,231,497.70 : 129,347,246.55 = 86,231,497.70 : x - Step 2: Convert to fraction form
86,231,497.70/129,347,246.55 = 86,231,497.70/x - Step 3: Cross multiply
86,231,497.70x = 129,347,246.55 × 86,231,497.70 - Step 4: Simplify right side
86,231,497.70x = 11,153,806,793,377,658 - Step 5: Solve for x
x = 11,153,806,793,377,658/86,231,497.70 - Step 6: Final answer
x = 129,347,246.55
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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.