Finding the Fourth Proportional to 131,682,304.62, 181,719,149.00 and 72,943,680.92
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Solution
The fourth proportional to 131,682,304.62, 181,719,149.00 and 72,943,680.92 is: 100,660,932.83
Step by Step Solution
- Step 1: Write the proportion equation
131,682,304.62 : 181,719,149.00 = 72,943,680.92 : x - Step 2: Convert to fraction form
131,682,304.62/181,719,149.00 = 72,943,680.92/x - Step 3: Cross multiply
131,682,304.62x = 181,719,149.00 × 72,943,680.92 - Step 4: Simplify right side
131,682,304.62x = 13,255,263,620,436,624 - Step 5: Solve for x
x = 13,255,263,620,436,624/131,682,304.62 - Step 6: Final answer
x = 100,660,932.83
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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.