Home / 80,802,932.80-121,204,399.20-40,398,836.80

Finding the Fourth Proportional to 80,802,932.80, 121,204,399.20 and 40,398,836.80

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Solution

The fourth proportional to 80,802,932.80, 121,204,399.20 and 40,398,836.80 is: 60,598,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,802,932.80 : 121,204,399.20 = 40,398,836.80 : x
  2. Step 2: Convert to fraction form
    80,802,932.80/121,204,399.20 = 40,398,836.80/x
  3. Step 3: Cross multiply
    80,802,932.80x = 121,204,399.20 × 40,398,836.80
  4. Step 4: Simplify right side
    80,802,932.80x = 4,896,516,742,722,850
  5. Step 5: Solve for x
    x = 4,896,516,742,722,850/80,802,932.80
  6. Step 6: Final answer
    x = 60,598,255.20

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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.