Home / 20,568,634.28-28,384,100.14-11,275,886.75

Finding the Fourth Proportional to 20,568,634.28, 28,384,100.14 and 11,275,886.75

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Solution

The fourth proportional to 20,568,634.28, 28,384,100.14 and 11,275,886.75 is: 15,560,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,634.28 : 28,384,100.14 = 11,275,886.75 : x
  2. Step 2: Convert to fraction form
    20,568,634.28/28,384,100.14 = 11,275,886.75/x
  3. Step 3: Cross multiply
    20,568,634.28x = 28,384,100.14 × 11,275,886.75
  4. Step 4: Simplify right side
    20,568,634.28x = 320,055,898,679,299.12
  5. Step 5: Solve for x
    x = 320,055,898,679,299.12/20,568,634.28
  6. Step 6: Final answer
    x = 15,560,386.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.