Home / 18,821,717.20-28,231,992.60-5,358,545.20

Finding the Fourth Proportional to 18,821,717.20, 28,231,992.60 and 5,358,545.20

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Solution

The fourth proportional to 18,821,717.20, 28,231,992.60 and 5,358,545.20 is: 8,037,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,717.20 : 28,231,992.60 = 5,358,545.20 : x
  2. Step 2: Convert to fraction form
    18,821,717.20/28,231,992.60 = 5,358,545.20/x
  3. Step 3: Cross multiply
    18,821,717.20x = 28,231,992.60 × 5,358,545.20
  4. Step 4: Simplify right side
    18,821,717.20x = 151,282,408,433,165.53
  5. Step 5: Solve for x
    x = 151,282,408,433,165.53/18,821,717.20
  6. Step 6: Final answer
    x = 8,037,651.76

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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.