Home / 18,378,138.60-27,567,207.90-4,914,966.60

Finding the Fourth Proportional to 18,378,138.60, 27,567,207.90 and 4,914,966.60

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Solution

The fourth proportional to 18,378,138.60, 27,567,207.90 and 4,914,966.60 is: 7,372,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,138.60 : 27,567,207.90 = 4,914,966.60 : x
  2. Step 2: Convert to fraction form
    18,378,138.60/27,567,207.90 = 4,914,966.60/x
  3. Step 3: Cross multiply
    18,378,138.60x = 27,567,207.90 × 4,914,966.60
  4. Step 4: Simplify right side
    18,378,138.60x = 135,491,906,083,756.12
  5. Step 5: Solve for x
    x = 135,491,906,083,756.12/18,378,138.60
  6. Step 6: Final answer
    x = 7,372,449.90

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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.