Home / 20,664,827.16-28,517,453.24-11,372,397.28

Finding the Fourth Proportional to 20,664,827.16, 28,517,453.24 and 11,372,397.28

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Solution

The fourth proportional to 20,664,827.16, 28,517,453.24 and 11,372,397.28 is: 15,693,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664,827.16 : 28,517,453.24 = 11,372,397.28 : x
  2. Step 2: Convert to fraction form
    20,664,827.16/28,517,453.24 = 11,372,397.28/x
  3. Step 3: Cross multiply
    20,664,827.16x = 28,517,453.24 × 11,372,397.28
  4. Step 4: Simplify right side
    20,664,827.16x = 324,311,807,659,103.12
  5. Step 5: Solve for x
    x = 324,311,807,659,103.12/20,664,827.16
  6. Step 6: Final answer
    x = 15,693,903.71

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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.