Home / 18,727,255.20-28,069,887.60-7,942,720.80

Finding the Fourth Proportional to 18,727,255.20, 28,069,887.60 and 7,942,720.80

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Solution

The fourth proportional to 18,727,255.20, 28,069,887.60 and 7,942,720.80 is: 11,905,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,255.20 : 28,069,887.60 = 7,942,720.80 : x
  2. Step 2: Convert to fraction form
    18,727,255.20/28,069,887.60 = 7,942,720.80/x
  3. Step 3: Cross multiply
    18,727,255.20x = 28,069,887.60 × 7,942,720.80
  4. Step 4: Simplify right side
    18,727,255.20x = 222,951,280,094,182.09
  5. Step 5: Solve for x
    x = 222,951,280,094,182.09/18,727,255.20
  6. Step 6: Final answer
    x = 11,905,176.58

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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.