Home / 20,081,335.20-30,101,007.60-10,969,418.40

Finding the Fourth Proportional to 20,081,335.20, 30,101,007.60 and 10,969,418.40

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Solution

The fourth proportional to 20,081,335.20, 30,101,007.60 and 10,969,418.40 is: 16,442,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081,335.20 : 30,101,007.60 = 10,969,418.40 : x
  2. Step 2: Convert to fraction form
    20,081,335.20/30,101,007.60 = 10,969,418.40/x
  3. Step 3: Cross multiply
    20,081,335.20x = 30,101,007.60 × 10,969,418.40
  4. Step 4: Simplify right side
    20,081,335.20x = 330,190,546,625,979.88
  5. Step 5: Solve for x
    x = 330,190,546,625,979.88/20,081,335.20
  6. Step 6: Final answer
    x = 16,442,658.98

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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.