Finding the Fourth Proportional to 18,431,442.20, 27,646,129.92 and 5,651,911.82
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Solution
The fourth proportional to 18,431,442.20, 27,646,129.92 and 5,651,911.82 is: 8,477,550.85
Step by Step Solution
- Step 1: Write the proportion equation
18,431,442.20 : 27,646,129.92 = 5,651,911.82 : x - Step 2: Convert to fraction form
18,431,442.20/27,646,129.92 = 5,651,911.82/x - Step 3: Cross multiply
18,431,442.20x = 27,646,129.92 × 5,651,911.82 - Step 4: Simplify right side
18,431,442.20x = 156,253,488,472,103.69 - Step 5: Solve for x
x = 156,253,488,472,103.69/18,431,442.20 - Step 6: Final answer
x = 8,477,550.85
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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.