Home / 20,568,955.22-28,384,543.65-11,276,207.54

Finding the Fourth Proportional to 20,568,955.22, 28,384,543.65 and 11,276,207.54

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Solution

The fourth proportional to 20,568,955.22, 28,384,543.65 and 11,276,207.54 is: 15,560,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,955.22 : 28,384,543.65 = 11,276,207.54 : x
  2. Step 2: Convert to fraction form
    20,568,955.22/28,384,543.65 = 11,276,207.54/x
  3. Step 3: Cross multiply
    20,568,955.22x = 28,384,543.65 × 11,276,207.54
  4. Step 4: Simplify right side
    20,568,955.22x = 320,070,005,125,589.06
  5. Step 5: Solve for x
    x = 320,070,005,125,589.06/20,568,955.22
  6. Step 6: Final answer
    x = 15,560,829.50

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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.