Home / 126,015,396.80-189,023,095.20-54,351,780.80

Finding the Fourth Proportional to 126,015,396.80, 189,023,095.20 and 54,351,780.80

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Solution

The fourth proportional to 126,015,396.80, 189,023,095.20 and 54,351,780.80 is: 81,527,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,015,396.80 : 189,023,095.20 = 54,351,780.80 : x
  2. Step 2: Convert to fraction form
    126,015,396.80/189,023,095.20 = 54,351,780.80/x
  3. Step 3: Cross multiply
    126,015,396.80x = 189,023,095.20 × 54,351,780.80
  4. Step 4: Simplify right side
    126,015,396.80x = 10,273,741,836,447,930
  5. Step 5: Solve for x
    x = 10,273,741,836,447,930/126,015,396.80
  6. Step 6: Final answer
    x = 81,527,671.20

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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.