Home / 128,015,205.73-192,023,306.79-30,970,757.59

Finding the Fourth Proportional to 128,015,205.73, 192,023,306.79 and 30,970,757.59

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Solution

The fourth proportional to 128,015,205.73, 192,023,306.79 and 30,970,757.59 is: 46,456,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,015,205.73 : 192,023,306.79 = 30,970,757.59 : x
  2. Step 2: Convert to fraction form
    128,015,205.73/192,023,306.79 = 30,970,757.59/x
  3. Step 3: Cross multiply
    128,015,205.73x = 192,023,306.79 × 30,970,757.59
  4. Step 4: Simplify right side
    128,015,205.73x = 5,947,107,286,223,291
  5. Step 5: Solve for x
    x = 5,947,107,286,223,291/128,015,205.73
  6. Step 6: Final answer
    x = 46,456,256.91

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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.