Home / 18,451,072.80-27,692,355.60-8,231,659.20

Finding the Fourth Proportional to 18,451,072.80, 27,692,355.60 and 8,231,659.20

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Solution

The fourth proportional to 18,451,072.80, 27,692,355.60 and 8,231,659.20 is: 12,354,513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451,072.80 : 27,692,355.60 = 8,231,659.20 : x
  2. Step 2: Convert to fraction form
    18,451,072.80/27,692,355.60 = 8,231,659.20/x
  3. Step 3: Cross multiply
    18,451,072.80x = 27,692,355.60 × 8,231,659.20
  4. Step 4: Simplify right side
    18,451,072.80x = 227,954,033,744,411.53
  5. Step 5: Solve for x
    x = 227,954,033,744,411.53/18,451,072.80
  6. Step 6: Final answer
    x = 12,354,513.81

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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.