Finding the Fourth Proportional to 15,442,212.29, 21,310,278.05 and 8,566,694.42
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Solution
The fourth proportional to 15,442,212.29, 21,310,278.05 and 8,566,694.42 is: 11,822,052.22
Step by Step Solution
- Step 1: Write the proportion equation
15,442,212.29 : 21,310,278.05 = 8,566,694.42 : x - Step 2: Convert to fraction form
15,442,212.29/21,310,278.05 = 8,566,694.42/x - Step 3: Cross multiply
15,442,212.29x = 21,310,278.05 × 8,566,694.42 - Step 4: Simplify right side
15,442,212.29x = 182,558,639,974,448.78 - Step 5: Solve for x
x = 182,558,639,974,448.78/15,442,212.29 - Step 6: Final answer
x = 11,822,052.22
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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.