Home / 18,815,722.60-28,218,124.38-7,885,626.64

Finding the Fourth Proportional to 18,815,722.60, 28,218,124.38 and 7,885,626.64

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Solution

The fourth proportional to 18,815,722.60, 28,218,124.38 and 7,885,626.64 is: 11,826,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815,722.60 : 28,218,124.38 = 7,885,626.64 : x
  2. Step 2: Convert to fraction form
    18,815,722.60/28,218,124.38 = 7,885,626.64/x
  3. Step 3: Cross multiply
    18,815,722.60x = 28,218,124.38 × 7,885,626.64
  4. Step 4: Simplify right side
    18,815,722.60x = 222,517,593,341,761.47
  5. Step 5: Solve for x
    x = 222,517,593,341,761.47/18,815,722.60
  6. Step 6: Final answer
    x = 11,826,151.89

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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.