Home / 128,304,084.30-192,078,212.85-120,829,793.10

Finding the Fourth Proportional to 128,304,084.30, 192,078,212.85 and 120,829,793.10

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Solution

The fourth proportional to 128,304,084.30, 192,078,212.85 and 120,829,793.10 is: 180,888,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,084.30 : 192,078,212.85 = 120,829,793.10 : x
  2. Step 2: Convert to fraction form
    128,304,084.30/192,078,212.85 = 120,829,793.10/x
  3. Step 3: Cross multiply
    128,304,084.30x = 192,078,212.85 × 120,829,793.10
  4. Step 4: Simplify right side
    128,304,084.30x = 23,208,770,717,683,260
  5. Step 5: Solve for x
    x = 23,208,770,717,683,260/128,304,084.30
  6. Step 6: Final answer
    x = 180,888,791.22

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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.