Finding the Fourth Proportional to 3,970,425.17, 5,479,186.29 and 2,251,545.69
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Solution
The fourth proportional to 3,970,425.17, 5,479,186.29 and 2,251,545.69 is: 3,107,132.80
Step by Step Solution
- Step 1: Write the proportion equation
3,970,425.17 : 5,479,186.29 = 2,251,545.69 : x - Step 2: Convert to fraction form
3,970,425.17/5,479,186.29 = 2,251,545.69/x - Step 3: Cross multiply
3,970,425.17x = 5,479,186.29 × 2,251,545.69 - Step 4: Simplify right side
3,970,425.17x = 12,336,638,275,956.59 - Step 5: Solve for x
x = 12,336,638,275,956.59/3,970,425.17 - Step 6: Final answer
x = 3,107,132.80
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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.