Home / 20,568,862.55-28,384,415.87-11,276,115.02

Finding the Fourth Proportional to 20,568,862.55, 28,384,415.87 and 11,276,115.02

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Solution

The fourth proportional to 20,568,862.55, 28,384,415.87 and 11,276,115.02 is: 15,560,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,862.55 : 28,384,415.87 = 11,276,115.02 : x
  2. Step 2: Convert to fraction form
    20,568,862.55/28,384,415.87 = 11,276,115.02/x
  3. Step 3: Cross multiply
    20,568,862.55x = 28,384,415.87 × 11,276,115.02
  4. Step 4: Simplify right side
    20,568,862.55x = 320,065,938,125,633.38
  5. Step 5: Solve for x
    x = 320,065,938,125,633.38/20,568,862.55
  6. Step 6: Final answer
    x = 15,560,701.88

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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.