Home / 20,373,522.56-28,114,868.32-11,206,162.88

Finding the Fourth Proportional to 20,373,522.56, 28,114,868.32 and 11,206,162.88

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Solution

The fourth proportional to 20,373,522.56, 28,114,868.32 and 11,206,162.88 is: 15,464,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,522.56 : 28,114,868.32 = 11,206,162.88 : x
  2. Step 2: Convert to fraction form
    20,373,522.56/28,114,868.32 = 11,206,162.88/x
  3. Step 3: Cross multiply
    20,373,522.56x = 28,114,868.32 × 11,206,162.88
  4. Step 4: Simplify right side
    20,373,522.56x = 315,059,793,743,672
  5. Step 5: Solve for x
    x = 315,059,793,743,672/20,373,522.56
  6. Step 6: Final answer
    x = 15,464,178.71

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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.