Finding the Fourth Proportional to 124,861,198.24, 172,296,779.68 and 74,615,446.08
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Solution
The fourth proportional to 124,861,198.24, 172,296,779.68 and 74,615,446.08 is: 102,962,339.42
Step by Step Solution
- Step 1: Write the proportion equation
124,861,198.24 : 172,296,779.68 = 74,615,446.08 : x - Step 2: Convert to fraction form
124,861,198.24/172,296,779.68 = 74,615,446.08/x - Step 3: Cross multiply
124,861,198.24x = 172,296,779.68 × 74,615,446.08 - Step 4: Simplify right side
124,861,198.24x = 12,856,001,073,970,680 - Step 5: Solve for x
x = 12,856,001,073,970,680/124,861,198.24 - Step 6: Final answer
x = 102,962,339.42
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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.