Finding the Fourth Proportional to 18,321,125.76, 27,479,589.12 and 4,859,003.52
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Solution
The fourth proportional to 18,321,125.76, 27,479,589.12 and 4,859,003.52 is: 7,287,948.46
Step by Step Solution
- Step 1: Write the proportion equation
18,321,125.76 : 27,479,589.12 = 4,859,003.52 : x - Step 2: Convert to fraction form
18,321,125.76/27,479,589.12 = 4,859,003.52/x - Step 3: Cross multiply
18,321,125.76x = 27,479,589.12 × 4,859,003.52 - Step 4: Simplify right side
18,321,125.76x = 133,523,420,262,233.69 - Step 5: Solve for x
x = 133,523,420,262,233.69/18,321,125.76 - Step 6: Final answer
x = 7,287,948.46
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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.