Finding the Fourth Proportional to 215,981,479.92, 323,986,585.74 and 75,904,995.84
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Solution
The fourth proportional to 215,981,479.92, 323,986,585.74 and 75,904,995.84 is: 113,862,542.53
Step by Step Solution
- Step 1: Write the proportion equation
215,981,479.92 : 323,986,585.74 = 75,904,995.84 : x - Step 2: Convert to fraction form
215,981,479.92/323,986,585.74 = 75,904,995.84/x - Step 3: Cross multiply
215,981,479.92x = 323,986,585.74 × 75,904,995.84 - Step 4: Simplify right side
215,981,479.92x = 24,592,200,442,810,504 - Step 5: Solve for x
x = 24,592,200,442,810,504/215,981,479.92 - Step 6: Final answer
x = 113,862,542.53
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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.