Home / 20,435,928.17-28,201,375.52-11,143,475.43

Finding the Fourth Proportional to 20,435,928.17, 28,201,375.52 and 11,143,475.43

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Solution

The fourth proportional to 20,435,928.17, 28,201,375.52 and 11,143,475.43 is: 15,377,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435,928.17 : 28,201,375.52 = 11,143,475.43 : x
  2. Step 2: Convert to fraction form
    20,435,928.17/28,201,375.52 = 11,143,475.43/x
  3. Step 3: Cross multiply
    20,435,928.17x = 28,201,375.52 × 11,143,475.43
  4. Step 4: Simplify right side
    20,435,928.17x = 314,261,335,291,149.31
  5. Step 5: Solve for x
    x = 314,261,335,291,149.31/20,435,928.17
  6. Step 6: Final answer
    x = 15,377,884.12

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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.