Home / 20,568,956.22-28,384,545.03-11,276,208.54

Finding the Fourth Proportional to 20,568,956.22, 28,384,545.03 and 11,276,208.54

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Solution

The fourth proportional to 20,568,956.22, 28,384,545.03 and 11,276,208.54 is: 15,560,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,956.22 : 28,384,545.03 = 11,276,208.54 : x
  2. Step 2: Convert to fraction form
    20,568,956.22/28,384,545.03 = 11,276,208.54/x
  3. Step 3: Cross multiply
    20,568,956.22x = 28,384,545.03 × 11,276,208.54
  4. Step 4: Simplify right side
    20,568,956.22x = 320,070,049,071,300.56
  5. Step 5: Solve for x
    x = 320,070,049,071,300.56/20,568,956.22
  6. Step 6: Final answer
    x = 15,560,830.88

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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.