Finding the Fourth Proportional to 15,727,691.18, 21,693,033.51 and 10,498,062.63
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Solution
The fourth proportional to 15,727,691.18, 21,693,033.51 and 10,498,062.63 is: 14,479,863.69
Step by Step Solution
- Step 1: Write the proportion equation
15,727,691.18 : 21,693,033.51 = 10,498,062.63 : x - Step 2: Convert to fraction form
15,727,691.18/21,693,033.51 = 10,498,062.63/x - Step 3: Cross multiply
15,727,691.18x = 21,693,033.51 × 10,498,062.63 - Step 4: Simplify right side
15,727,691.18x = 227,734,824,422,668.78 - Step 5: Solve for x
x = 227,734,824,422,668.78/15,727,691.18 - Step 6: Final answer
x = 14,479,863.69
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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.