Home / 20,600,201.35-28,428,309.01-11,180,995.72

Finding the Fourth Proportional to 20,600,201.35, 28,428,309.01 and 11,180,995.72

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Solution

The fourth proportional to 20,600,201.35, 28,428,309.01 and 11,180,995.72 is: 15,429,791.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600,201.35 : 28,428,309.01 = 11,180,995.72 : x
  2. Step 2: Convert to fraction form
    20,600,201.35/28,428,309.01 = 11,180,995.72/x
  3. Step 3: Cross multiply
    20,600,201.35x = 28,428,309.01 × 11,180,995.72
  4. Step 4: Simplify right side
    20,600,201.35x = 317,856,801,367,647.50
  5. Step 5: Solve for x
    x = 317,856,801,367,647.50/20,600,201.35
  6. Step 6: Final answer
    x = 15,429,791.00

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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.