Home / 28,067,434.20-42,101,151.30-18,979,793.10

Finding the Fourth Proportional to 28,067,434.20, 42,101,151.30 and 18,979,793.10

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Solution

The fourth proportional to 28,067,434.20, 42,101,151.30 and 18,979,793.10 is: 28,469,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,434.20 : 42,101,151.30 = 18,979,793.10 : x
  2. Step 2: Convert to fraction form
    28,067,434.20/42,101,151.30 = 18,979,793.10/x
  3. Step 3: Cross multiply
    28,067,434.20x = 42,101,151.30 × 18,979,793.10
  4. Step 4: Simplify right side
    28,067,434.20x = 799,071,140,945,796
  5. Step 5: Solve for x
    x = 799,071,140,945,796/28,067,434.20
  6. Step 6: Final answer
    x = 28,469,689.65

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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.