Finding the Fourth Proportional to 11,338,694.28, 15,642,478.62 and 7,206,514.92
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Solution
The fourth proportional to 11,338,694.28, 15,642,478.62 and 7,206,514.92 is: 9,941,863.92
Step by Step Solution
- Step 1: Write the proportion equation
11,338,694.28 : 15,642,478.62 = 7,206,514.92 : x - Step 2: Convert to fraction form
11,338,694.28/15,642,478.62 = 7,206,514.92/x - Step 3: Cross multiply
11,338,694.28x = 15,642,478.62 × 7,206,514.92 - Step 4: Simplify right side
11,338,694.28x = 112,727,755,560,811 - Step 5: Solve for x
x = 112,727,755,560,811/11,338,694.28 - Step 6: Final answer
x = 9,941,863.92
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1.5x scale
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.