Finding the Fourth Proportional to 129,490,292.24, 194,235,436.92 and 71,955,046.16
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Solution
The fourth proportional to 129,490,292.24, 194,235,436.92 and 71,955,046.16 is: 107,932,568.44
Step by Step Solution
- Step 1: Write the proportion equation
129,490,292.24 : 194,235,436.92 = 71,955,046.16 : x - Step 2: Convert to fraction form
129,490,292.24/194,235,436.92 = 71,955,046.16/x - Step 3: Cross multiply
129,490,292.24x = 194,235,436.92 × 71,955,046.16 - Step 4: Simplify right side
129,490,292.24x = 13,976,219,829,486,366 - Step 5: Solve for x
x = 13,976,219,829,486,366/129,490,292.24 - Step 6: Final answer
x = 107,932,568.44
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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.