Home / 129,536,987.60-194,181,065.40-74,893,480.40

Finding the Fourth Proportional to 129,536,987.60, 194,181,065.40 and 74,893,480.40

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Solution

The fourth proportional to 129,536,987.60, 194,181,065.40 and 74,893,480.40 is: 112,268,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,536,987.60 : 194,181,065.40 = 74,893,480.40 : x
  2. Step 2: Convert to fraction form
    129,536,987.60/194,181,065.40 = 74,893,480.40/x
  3. Step 3: Cross multiply
    129,536,987.60x = 194,181,065.40 × 74,893,480.40
  4. Step 4: Simplify right side
    129,536,987.60x = 14,542,895,815,586,020
  5. Step 5: Solve for x
    x = 14,542,895,815,586,020/129,536,987.60
  6. Step 6: Final answer
    x = 112,268,287.88

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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.