Home / 18,770,043.40-28,165,715.90-10,134,028.76

Finding the Fourth Proportional to 18,770,043.40, 28,165,715.90 and 10,134,028.76

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Solution

The fourth proportional to 18,770,043.40, 28,165,715.90 and 10,134,028.76 is: 15,206,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770,043.40 : 28,165,715.90 = 10,134,028.76 : x
  2. Step 2: Convert to fraction form
    18,770,043.40/28,165,715.90 = 10,134,028.76/x
  3. Step 3: Cross multiply
    18,770,043.40x = 28,165,715.90 × 10,134,028.76
  4. Step 4: Simplify right side
    18,770,043.40x = 285,432,174,976,589.25
  5. Step 5: Solve for x
    x = 285,432,174,976,589.25/18,770,043.40
  6. Step 6: Final answer
    x = 15,206,793.55

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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.