Finding the Fourth Proportional to 129,336,148.53, 193,932,445.41 and 43,027,440.12
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Solution
The fourth proportional to 129,336,148.53, 193,932,445.41 and 43,027,440.12 is: 64,517,281.34
Step by Step Solution
- Step 1: Write the proportion equation
129,336,148.53 : 193,932,445.41 = 43,027,440.12 : x - Step 2: Convert to fraction form
129,336,148.53/193,932,445.41 = 43,027,440.12/x - Step 3: Cross multiply
129,336,148.53x = 193,932,445.41 × 43,027,440.12 - Step 4: Simplify right side
129,336,148.53x = 8,344,416,682,203,943 - Step 5: Solve for x
x = 8,344,416,682,203,943/129,336,148.53 - Step 6: Final answer
x = 64,517,281.34
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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.