Home / 81,752,773.92-122,108,009.34-73,959,720.72

Finding the Fourth Proportional to 81,752,773.92, 122,108,009.34 and 73,959,720.72

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Solution

The fourth proportional to 81,752,773.92, 122,108,009.34 and 73,959,720.72 is: 110,468,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,752,773.92 : 122,108,009.34 = 73,959,720.72 : x
  2. Step 2: Convert to fraction form
    81,752,773.92/122,108,009.34 = 73,959,720.72/x
  3. Step 3: Cross multiply
    81,752,773.92x = 122,108,009.34 × 73,959,720.72
  4. Step 4: Simplify right side
    81,752,773.92x = 9,031,074,268,461,552
  5. Step 5: Solve for x
    x = 9,031,074,268,461,552/81,752,773.92
  6. Step 6: Final answer
    x = 110,468,108.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.