Home / 18,778,977.21-28,170,375.39-6,481,340.04

Finding the Fourth Proportional to 18,778,977.21, 28,170,375.39 and 6,481,340.04

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Solution

The fourth proportional to 18,778,977.21, 28,170,375.39 and 6,481,340.04 is: 9,722,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,977.21 : 28,170,375.39 = 6,481,340.04 : x
  2. Step 2: Convert to fraction form
    18,778,977.21/28,170,375.39 = 6,481,340.04/x
  3. Step 3: Cross multiply
    18,778,977.21x = 28,170,375.39 × 6,481,340.04
  4. Step 4: Simplify right side
    18,778,977.21x = 182,581,781,957,037.62
  5. Step 5: Solve for x
    x = 182,581,781,957,037.62/18,778,977.21
  6. Step 6: Final answer
    x = 9,722,669.13

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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.