Home / 129,007,016.63-192,535,892.25-120,259,780.88

Finding the Fourth Proportional to 129,007,016.63, 192,535,892.25 and 120,259,780.88

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Solution

The fourth proportional to 129,007,016.63, 192,535,892.25 and 120,259,780.88 is: 179,481,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007,016.63 : 192,535,892.25 = 120,259,780.88 : x
  2. Step 2: Convert to fraction form
    129,007,016.63/192,535,892.25 = 120,259,780.88/x
  3. Step 3: Cross multiply
    129,007,016.63x = 192,535,892.25 × 120,259,780.88
  4. Step 4: Simplify right side
    129,007,016.63x = 23,154,324,213,520,288
  5. Step 5: Solve for x
    x = 23,154,324,213,520,288/129,007,016.63
  6. Step 6: Final answer
    x = 179,481,122.95

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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.