Home / 20,561,863.92-28,375,032.60-11,269,362.48

Finding the Fourth Proportional to 20,561,863.92, 28,375,032.60 and 11,269,362.48

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Solution

The fourth proportional to 20,561,863.92, 28,375,032.60 and 11,269,362.48 is: 15,551,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,863.92 : 28,375,032.60 = 11,269,362.48 : x
  2. Step 2: Convert to fraction form
    20,561,863.92/28,375,032.60 = 11,269,362.48/x
  3. Step 3: Cross multiply
    20,561,863.92x = 28,375,032.60 × 11,269,362.48
  4. Step 4: Simplify right side
    20,561,863.92x = 319,768,527,751,216.88
  5. Step 5: Solve for x
    x = 319,768,527,751,216.88/20,561,863.92
  6. Step 6: Final answer
    x = 15,551,534.09

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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.