Home / 80,986,904.80-121,491,013.20-29,904,805.60

Finding the Fourth Proportional to 80,986,904.80, 121,491,013.20 and 29,904,805.60

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Solution

The fourth proportional to 80,986,904.80, 121,491,013.20 and 29,904,805.60 is: 44,861,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,986,904.80 : 121,491,013.20 = 29,904,805.60 : x
  2. Step 2: Convert to fraction form
    80,986,904.80/121,491,013.20 = 29,904,805.60/x
  3. Step 3: Cross multiply
    80,986,904.80x = 121,491,013.20 × 29,904,805.60
  4. Step 4: Simplify right side
    80,986,904.80x = 3,633,165,131,893,034
  5. Step 5: Solve for x
    x = 3,633,165,131,893,034/80,986,904.80
  6. Step 6: Final answer
    x = 44,861,143.18

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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.