Home / 20,462,930.27-28,239,512.13-11,170,995.80

Finding the Fourth Proportional to 20,462,930.27, 28,239,512.13 and 11,170,995.80

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Solution

The fourth proportional to 20,462,930.27, 28,239,512.13 and 11,170,995.80 is: 15,416,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462,930.27 : 28,239,512.13 = 11,170,995.80 : x
  2. Step 2: Convert to fraction form
    20,462,930.27/28,239,512.13 = 11,170,995.80/x
  3. Step 3: Cross multiply
    20,462,930.27x = 28,239,512.13 × 11,170,995.80
  4. Step 4: Simplify right side
    20,462,930.27x = 315,463,471,257,081.50
  5. Step 5: Solve for x
    x = 315,463,471,257,081.50/20,462,930.27
  6. Step 6: Final answer
    x = 15,416,339.07

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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.