Home / 80,678,785.20-121,002,431.40-26,826,097.20

Finding the Fourth Proportional to 80,678,785.20, 121,002,431.40 and 26,826,097.20

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Solution

The fourth proportional to 80,678,785.20, 121,002,431.40 and 26,826,097.20 is: 40,233,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678,785.20 : 121,002,431.40 = 26,826,097.20 : x
  2. Step 2: Convert to fraction form
    80,678,785.20/121,002,431.40 = 26,826,097.20/x
  3. Step 3: Cross multiply
    80,678,785.20x = 121,002,431.40 × 26,826,097.20
  4. Step 4: Simplify right side
    80,678,785.20x = 3,246,022,986,172,732
  5. Step 5: Solve for x
    x = 3,246,022,986,172,732/80,678,785.20
  6. Step 6: Final answer
    x = 40,233,910.04

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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.