Home / 120,198,919,632.72-180,304,177,724.13-39,522,836,847.03

Finding the Fourth Proportional to 120,198,919,632.72, 180,304,177,724.13 and 39,522,836,847.03

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Solution

The fourth proportional to 120,198,919,632.72, 180,304,177,724.13 and 39,522,836,847.03 is: 59,286,161,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198,919,632.72 : 180,304,177,724.13 = 39,522,836,847.03 : x
  2. Step 2: Convert to fraction form
    120,198,919,632.72/180,304,177,724.13 = 39,522,836,847.03/x
  3. Step 3: Cross multiply
    120,198,919,632.72x = 180,304,177,724.13 × 39,522,836,847.03
  4. Step 4: Simplify right side
    120,198,919,632.72x = 7,126,132,599,028,690,452,480
  5. Step 5: Solve for x
    x = 7,126,132,599,028,690,452,480/120,198,919,632.72
  6. Step 6: Final answer
    x = 59,286,161,812.46

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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.