Home / 120,198,919,630.35-180,304,177,720.61-39,522,836,844.66

Finding the Fourth Proportional to 120,198,919,630.35, 180,304,177,720.61 and 39,522,836,844.66

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Solution

The fourth proportional to 120,198,919,630.35, 180,304,177,720.61 and 39,522,836,844.66 is: 59,286,161,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198,919,630.35 : 180,304,177,720.61 = 39,522,836,844.66 : x
  2. Step 2: Convert to fraction form
    120,198,919,630.35/180,304,177,720.61 = 39,522,836,844.66/x
  3. Step 3: Cross multiply
    120,198,919,630.35x = 180,304,177,720.61 × 39,522,836,844.66
  4. Step 4: Simplify right side
    120,198,919,630.35x = 7,126,132,598,461,707,583,488
  5. Step 5: Solve for x
    x = 7,126,132,598,461,707,583,488/120,198,919,630.35
  6. Step 6: Final answer
    x = 59,286,161,808.92

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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.