Home / 120,198,919,630.98-180,304,177,721.55-39,522,836,845.28

Finding the Fourth Proportional to 120,198,919,630.98, 180,304,177,721.55 and 39,522,836,845.28

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Solution

The fourth proportional to 120,198,919,630.98, 180,304,177,721.55 and 39,522,836,845.28 is: 59,286,161,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198,919,630.98 : 180,304,177,721.55 = 39,522,836,845.28 : x
  2. Step 2: Convert to fraction form
    120,198,919,630.98/180,304,177,721.55 = 39,522,836,845.28/x
  3. Step 3: Cross multiply
    120,198,919,630.98x = 180,304,177,721.55 × 39,522,836,845.28
  4. Step 4: Simplify right side
    120,198,919,630.98x = 7,126,132,598,611,729,448,960
  5. Step 5: Solve for x
    x = 7,126,132,598,611,729,448,960/120,198,919,630.98
  6. Step 6: Final answer
    x = 59,286,161,809.85

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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.