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Finding the Fourth Proportional to 154,801,672.80, 231,978,560.40 and 68,469,410.40

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Solution

The fourth proportional to 154,801,672.80, 231,978,560.40 and 68,469,410.40 is: 102,605,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,801,672.80 : 231,978,560.40 = 68,469,410.40 : x
  2. Step 2: Convert to fraction form
    154,801,672.80/231,978,560.40 = 68,469,410.40/x
  3. Step 3: Cross multiply
    154,801,672.80x = 231,978,560.40 × 68,469,410.40
  4. Step 4: Simplify right side
    154,801,672.80x = 15,883,435,256,028,790
  5. Step 5: Solve for x
    x = 15,883,435,256,028,790/154,801,672.80
  6. Step 6: Final answer
    x = 102,605,062.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.