Home / 20,378,722.92-30,568,078.80-13,969,544.46

Finding the Fourth Proportional to 20,378,722.92, 30,568,078.80 and 13,969,544.46

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Solution

The fourth proportional to 20,378,722.92, 30,568,078.80 and 13,969,544.46 is: 20,954,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378,722.92 : 30,568,078.80 = 13,969,544.46 : x
  2. Step 2: Convert to fraction form
    20,378,722.92/30,568,078.80 = 13,969,544.46/x
  3. Step 3: Cross multiply
    20,378,722.92x = 30,568,078.80 × 13,969,544.46
  4. Step 4: Simplify right side
    20,378,722.92x = 427,022,135,853,383.50
  5. Step 5: Solve for x
    x = 427,022,135,853,383.50/20,378,722.92
  6. Step 6: Final answer
    x = 20,954,312.86

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1.5x scale

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.