Finding the Fourth Proportional to 11,647,863.20, 17,471,794.80 and 5,979,159.20
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Solution
The fourth proportional to 11,647,863.20, 17,471,794.80 and 5,979,159.20 is: 8,968,738.80
Step by Step Solution
- Step 1: Write the proportion equation
11,647,863.20 : 17,471,794.80 = 5,979,159.20 : x - Step 2: Convert to fraction form
11,647,863.20/17,471,794.80 = 5,979,159.20/x - Step 3: Cross multiply
11,647,863.20x = 17,471,794.80 × 5,979,159.20 - Step 4: Simplify right side
11,647,863.20x = 104,466,642,618,932.17 - Step 5: Solve for x
x = 104,466,642,618,932.17/11,647,863.20 - Step 6: Final answer
x = 8,968,738.80
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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.