Home / 20,664,826.67-28,517,452.56-11,372,396.78

Finding the Fourth Proportional to 20,664,826.67, 28,517,452.56 and 11,372,396.78

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Solution

The fourth proportional to 20,664,826.67, 28,517,452.56 and 11,372,396.78 is: 15,693,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664,826.67 : 28,517,452.56 = 11,372,396.78 : x
  2. Step 2: Convert to fraction form
    20,664,826.67/28,517,452.56 = 11,372,396.78/x
  3. Step 3: Cross multiply
    20,664,826.67x = 28,517,452.56 × 11,372,396.78
  4. Step 4: Simplify right side
    20,664,826.67x = 324,311,785,667,146.75
  5. Step 5: Solve for x
    x = 324,311,785,667,146.75/20,664,826.67
  6. Step 6: Final answer
    x = 15,693,903.02

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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.