Home / 13,195,066.40-18,198,395.64-9,287,757.24

Finding the Fourth Proportional to 13,195,066.40, 18,198,395.64 and 9,287,757.24

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Solution

The fourth proportional to 13,195,066.40, 18,198,395.64 and 9,287,757.24 is: 12,809,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195,066.40 : 18,198,395.64 = 9,287,757.24 : x
  2. Step 2: Convert to fraction form
    13,195,066.40/18,198,395.64 = 9,287,757.24/x
  3. Step 3: Cross multiply
    13,195,066.40x = 18,198,395.64 × 9,287,757.24
  4. Step 4: Simplify right side
    13,195,066.40x = 169,022,280,861,794.44
  5. Step 5: Solve for x
    x = 169,022,280,861,794.44/13,195,066.40
  6. Step 6: Final answer
    x = 12,809,505.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.