Home / 28,979,781.60-43,469,672.40-15,542,853.60

Finding the Fourth Proportional to 28,979,781.60, 43,469,672.40 and 15,542,853.60

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Solution

The fourth proportional to 28,979,781.60, 43,469,672.40 and 15,542,853.60 is: 23,314,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,781.60 : 43,469,672.40 = 15,542,853.60 : x
  2. Step 2: Convert to fraction form
    28,979,781.60/43,469,672.40 = 15,542,853.60/x
  3. Step 3: Cross multiply
    28,979,781.60x = 43,469,672.40 × 15,542,853.60
  4. Step 4: Simplify right side
    28,979,781.60x = 675,642,754,153,160.62
  5. Step 5: Solve for x
    x = 675,642,754,153,160.62/28,979,781.60
  6. Step 6: Final answer
    x = 23,314,280.40

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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.