Finding the Fourth Proportional to 11,491,948.80, 17,236,540.80 and 4,759,660.80
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Solution
The fourth proportional to 11,491,948.80, 17,236,540.80 and 4,759,660.80 is: 7,138,918.65
Step by Step Solution
- Step 1: Write the proportion equation
11,491,948.80 : 17,236,540.80 = 4,759,660.80 : x - Step 2: Convert to fraction form
11,491,948.80/17,236,540.80 = 4,759,660.80/x - Step 3: Cross multiply
11,491,948.80x = 17,236,540.80 × 4,759,660.80 - Step 4: Simplify right side
11,491,948.80x = 82,040,087,573,360.64 - Step 5: Solve for x
x = 82,040,087,573,360.64/11,491,948.80 - Step 6: Final answer
x = 7,138,918.65
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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.