Home / 72,834,251.76-100,510,078.50-39,793,789.80

Finding the Fourth Proportional to 72,834,251.76, 100,510,078.50 and 39,793,789.80

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Solution

The fourth proportional to 72,834,251.76, 100,510,078.50 and 39,793,789.80 is: 54,914,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,834,251.76 : 100,510,078.50 = 39,793,789.80 : x
  2. Step 2: Convert to fraction form
    72,834,251.76/100,510,078.50 = 39,793,789.80/x
  3. Step 3: Cross multiply
    72,834,251.76x = 100,510,078.50 × 39,793,789.80
  4. Step 4: Simplify right side
    72,834,251.76x = 3,999,676,936,610,499
  5. Step 5: Solve for x
    x = 3,999,676,936,610,499/72,834,251.76
  6. Step 6: Final answer
    x = 54,914,780.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.