Home / 81,853,362.71-122,781,372.66-23,561,813.75

Finding the Fourth Proportional to 81,853,362.71, 122,781,372.66 and 23,561,813.75

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Solution

The fourth proportional to 81,853,362.71, 122,781,372.66 and 23,561,813.75 is: 35,343,103.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,853,362.71 : 122,781,372.66 = 23,561,813.75 : x
  2. Step 2: Convert to fraction form
    81,853,362.71/122,781,372.66 = 23,561,813.75/x
  3. Step 3: Cross multiply
    81,853,362.71x = 122,781,372.66 × 23,561,813.75
  4. Step 4: Simplify right side
    81,853,362.71x = 2,892,951,834,891,215.50
  5. Step 5: Solve for x
    x = 2,892,951,834,891,215.50/81,853,362.71
  6. Step 6: Final answer
    x = 35,343,103.07

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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.