Finding the Fourth Proportional to 27,981,899.11, 38,614,503.42 and 15,251,718.58
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Solution
The fourth proportional to 27,981,899.11, 38,614,503.42 and 15,251,718.58 is: 21,047,089.65
Step by Step Solution
- Step 1: Write the proportion equation
27,981,899.11 : 38,614,503.42 = 15,251,718.58 : x - Step 2: Convert to fraction form
27,981,899.11/38,614,503.42 = 15,251,718.58/x - Step 3: Cross multiply
27,981,899.11x = 38,614,503.42 × 15,251,718.58 - Step 4: Simplify right side
27,981,899.11x = 588,937,539,268,287.62 - Step 5: Solve for x
x = 588,937,539,268,287.62/27,981,899.11 - Step 6: Final answer
x = 21,047,089.65
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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.