Home / 20,378,719.92-30,568,074.30-13,969,541.46

Finding the Fourth Proportional to 20,378,719.92, 30,568,074.30 and 13,969,541.46

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Solution

The fourth proportional to 20,378,719.92, 30,568,074.30 and 13,969,541.46 is: 20,954,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378,719.92 : 30,568,074.30 = 13,969,541.46 : x
  2. Step 2: Convert to fraction form
    20,378,719.92/30,568,074.30 = 13,969,541.46/x
  3. Step 3: Cross multiply
    20,378,719.92x = 30,568,074.30 × 13,969,541.46
  4. Step 4: Simplify right side
    20,378,719.92x = 427,021,981,286,210.50
  5. Step 5: Solve for x
    x = 427,021,981,286,210.50/20,378,719.92
  6. Step 6: Final answer
    x = 20,954,308.36

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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.