Home / 18,843,842.70-28,265,764.05-12,386,834.55

Finding the Fourth Proportional to 18,843,842.70, 28,265,764.05 and 12,386,834.55

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Solution

The fourth proportional to 18,843,842.70, 28,265,764.05 and 12,386,834.55 is: 18,580,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843,842.70 : 28,265,764.05 = 12,386,834.55 : x
  2. Step 2: Convert to fraction form
    18,843,842.70/28,265,764.05 = 12,386,834.55/x
  3. Step 3: Cross multiply
    18,843,842.70x = 28,265,764.05 × 12,386,834.55
  4. Step 4: Simplify right side
    18,843,842.70x = 350,123,342,716,687.94
  5. Step 5: Solve for x
    x = 350,123,342,716,687.94/18,843,842.70
  6. Step 6: Final answer
    x = 18,580,251.83

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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.