Finding the Fourth Proportional to 18,125,569.40, 27,188,354.10 and 10,959,207.80
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Solution
The fourth proportional to 18,125,569.40, 27,188,354.10 and 10,959,207.80 is: 16,438,811.70
Step by Step Solution
- Step 1: Write the proportion equation
18,125,569.40 : 27,188,354.10 = 10,959,207.80 : x - Step 2: Convert to fraction form
18,125,569.40/27,188,354.10 = 10,959,207.80/x - Step 3: Cross multiply
18,125,569.40x = 27,188,354.10 × 10,959,207.80 - Step 4: Simplify right side
18,125,569.40x = 297,962,822,321,882 - Step 5: Solve for x
x = 297,962,822,321,882/18,125,569.40 - Step 6: Final answer
x = 16,438,811.70
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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.