Home / 20,245,578.20-30,344,747.70-8,109,040.40

Finding the Fourth Proportional to 20,245,578.20, 30,344,747.70 and 8,109,040.40

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Solution

The fourth proportional to 20,245,578.20, 30,344,747.70 and 8,109,040.40 is: 12,154,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245,578.20 : 30,344,747.70 = 8,109,040.40 : x
  2. Step 2: Convert to fraction form
    20,245,578.20/30,344,747.70 = 8,109,040.40/x
  3. Step 3: Cross multiply
    20,245,578.20x = 30,344,747.70 × 8,109,040.40
  4. Step 4: Simplify right side
    20,245,578.20x = 246,066,785,027,107.09
  5. Step 5: Solve for x
    x = 246,066,785,027,107.09/20,245,578.20
  6. Step 6: Final answer
    x = 12,154,100.15

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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.