Home / 120,198,919,633.72-180,304,177,725.63-39,522,836,848.03

Finding the Fourth Proportional to 120,198,919,633.72, 180,304,177,725.63 and 39,522,836,848.03

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Solution

The fourth proportional to 120,198,919,633.72, 180,304,177,725.63 and 39,522,836,848.03 is: 59,286,161,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198,919,633.72 : 180,304,177,725.63 = 39,522,836,848.03 : x
  2. Step 2: Convert to fraction form
    120,198,919,633.72/180,304,177,725.63 = 39,522,836,848.03/x
  3. Step 3: Cross multiply
    120,198,919,633.72x = 180,304,177,725.63 × 39,522,836,848.03
  4. Step 4: Simplify right side
    120,198,919,633.72x = 7,126,132,599,268,279,582,720
  5. Step 5: Solve for x
    x = 7,126,132,599,268,279,582,720/120,198,919,633.72
  6. Step 6: Final answer
    x = 59,286,161,813.96

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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.