Home / 28,979,833.20-43,469,749.80-15,542,905.20

Finding the Fourth Proportional to 28,979,833.20, 43,469,749.80 and 15,542,905.20

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Solution

The fourth proportional to 28,979,833.20, 43,469,749.80 and 15,542,905.20 is: 23,314,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,833.20 : 43,469,749.80 = 15,542,905.20 : x
  2. Step 2: Convert to fraction form
    28,979,833.20/43,469,749.80 = 15,542,905.20/x
  3. Step 3: Cross multiply
    28,979,833.20x = 43,469,749.80 × 15,542,905.20
  4. Step 4: Simplify right side
    28,979,833.20x = 675,646,200,209,118.88
  5. Step 5: Solve for x
    x = 675,646,200,209,118.88/28,979,833.20
  6. Step 6: Final answer
    x = 23,314,357.80

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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.