Home / 81,177,973.20-121,753,997.91-23,656,789.53

Finding the Fourth Proportional to 81,177,973.20, 121,753,997.91 and 23,656,789.53

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Solution

The fourth proportional to 81,177,973.20, 121,753,997.91 and 23,656,789.53 is: 35,481,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177,973.20 : 121,753,997.91 = 23,656,789.53 : x
  2. Step 2: Convert to fraction form
    81,177,973.20/121,753,997.91 = 23,656,789.53/x
  3. Step 3: Cross multiply
    81,177,973.20x = 121,753,997.91 × 23,656,789.53
  4. Step 4: Simplify right side
    81,177,973.20x = 2,880,308,702,992,930
  5. Step 5: Solve for x
    x = 2,880,308,702,992,930/81,177,973.20
  6. Step 6: Final answer
    x = 35,481,406.96

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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.