Finding the Fourth Proportional to 86,306,197.98, 129,510,371.52 and 31,757,088.99
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Solution
The fourth proportional to 86,306,197.98, 129,510,371.52 and 31,757,088.99 is: 47,654,426.79
Step by Step Solution
- Step 1: Write the proportion equation
86,306,197.98 : 129,510,371.52 = 31,757,088.99 : x - Step 2: Convert to fraction form
86,306,197.98/129,510,371.52 = 31,757,088.99/x - Step 3: Cross multiply
86,306,197.98x = 129,510,371.52 × 31,757,088.99 - Step 4: Simplify right side
86,306,197.98x = 4,112,872,393,488,601 - Step 5: Solve for x
x = 4,112,872,393,488,601/86,306,197.98 - Step 6: Final answer
x = 47,654,426.79
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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.