Home / 81,785,359.30-122,573,840.55-43,465,231.30

Finding the Fourth Proportional to 81,785,359.30, 122,573,840.55 and 43,465,231.30

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Solution

The fourth proportional to 81,785,359.30, 122,573,840.55 and 43,465,231.30 is: 65,142,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,785,359.30 : 122,573,840.55 = 43,465,231.30 : x
  2. Step 2: Convert to fraction form
    81,785,359.30/122,573,840.55 = 43,465,231.30/x
  3. Step 3: Cross multiply
    81,785,359.30x = 122,573,840.55 × 43,465,231.30
  4. Step 4: Simplify right side
    81,785,359.30x = 5,327,700,330,835,069
  5. Step 5: Solve for x
    x = 5,327,700,330,835,069/81,785,359.30
  6. Step 6: Final answer
    x = 65,142,470.20

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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.