Home / 81,752,774.92-122,108,010.83-73,959,721.72

Finding the Fourth Proportional to 81,752,774.92, 122,108,010.83 and 73,959,721.72

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Solution

The fourth proportional to 81,752,774.92, 122,108,010.83 and 73,959,721.72 is: 110,468,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,752,774.92 : 122,108,010.83 = 73,959,721.72 : x
  2. Step 2: Convert to fraction form
    81,752,774.92/122,108,010.83 = 73,959,721.72/x
  3. Step 3: Cross multiply
    81,752,774.92x = 122,108,010.83 × 73,959,721.72
  4. Step 4: Simplify right side
    81,752,774.92x = 9,031,074,500,769,546
  5. Step 5: Solve for x
    x = 9,031,074,500,769,546/81,752,774.92
  6. Step 6: Final answer
    x = 110,468,109.61

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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.