Home / 19,150,619.20-28,752,500.85-11,976,165.70

Finding the Fourth Proportional to 19,150,619.20, 28,752,500.85 and 11,976,165.70

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Solution

The fourth proportional to 19,150,619.20, 28,752,500.85 and 11,976,165.70 is: 17,980,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150,619.20 : 28,752,500.85 = 11,976,165.70 : x
  2. Step 2: Convert to fraction form
    19,150,619.20/28,752,500.85 = 11,976,165.70/x
  3. Step 3: Cross multiply
    19,150,619.20x = 28,752,500.85 × 11,976,165.70
  4. Step 4: Simplify right side
    19,150,619.20x = 344,344,714,468,990.81
  5. Step 5: Solve for x
    x = 344,344,714,468,990.81/19,150,619.20
  6. Step 6: Final answer
    x = 17,980,865.83

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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.