Finding the Fourth Proportional to 71,633,872.80, 107,450,809.20 and 67,382,344.80
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Solution
The fourth proportional to 71,633,872.80, 107,450,809.20 and 67,382,344.80 is: 101,073,517.20
Step by Step Solution
- Step 1: Write the proportion equation
71,633,872.80 : 107,450,809.20 = 67,382,344.80 : x - Step 2: Convert to fraction form
71,633,872.80/107,450,809.20 = 67,382,344.80/x - Step 3: Cross multiply
71,633,872.80x = 107,450,809.20 × 67,382,344.80 - Step 4: Simplify right side
71,633,872.80x = 7,240,287,474,553,412 - Step 5: Solve for x
x = 7,240,287,474,553,412/71,633,872.80 - Step 6: Final answer
x = 101,073,517.20
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1.5x scale
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.