Finding the Fourth Proportional to 10,223,599.20, 15,366,891.60 and 9,656,728.80
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Solution
The fourth proportional to 10,223,599.20, 15,366,891.60 and 9,656,728.80 is: 14,514,839.81
Step by Step Solution
- Step 1: Write the proportion equation
10,223,599.20 : 15,366,891.60 = 9,656,728.80 : x - Step 2: Convert to fraction form
10,223,599.20/15,366,891.60 = 9,656,728.80/x - Step 3: Cross multiply
10,223,599.20x = 15,366,891.60 × 9,656,728.80 - Step 4: Simplify right side
10,223,599.20x = 148,393,904,680,198.09 - Step 5: Solve for x
x = 148,393,904,680,198.09/10,223,599.20 - Step 6: Final answer
x = 14,514,839.81
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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.