Finding the Fourth Proportional to 10,257,906.80, 15,386,860.20 and 4,273,497.20
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Solution
The fourth proportional to 10,257,906.80, 15,386,860.20 and 4,273,497.20 is: 6,410,245.80
Step by Step Solution
- Step 1: Write the proportion equation
10,257,906.80 : 15,386,860.20 = 4,273,497.20 : x - Step 2: Convert to fraction form
10,257,906.80/15,386,860.20 = 4,273,497.20/x - Step 3: Cross multiply
10,257,906.80x = 15,386,860.20 × 4,273,497.20 - Step 4: Simplify right side
10,257,906.80x = 65,755,703,981,491.44 - Step 5: Solve for x
x = 65,755,703,981,491.44/10,257,906.80 - Step 6: Final answer
x = 6,410,245.80
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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.