Home / 20,986,550.60-28,961,145.43-11,694,512.31

Finding the Fourth Proportional to 20,986,550.60, 28,961,145.43 and 11,694,512.31

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Solution

The fourth proportional to 20,986,550.60, 28,961,145.43 and 11,694,512.31 is: 16,138,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,550.60 : 28,961,145.43 = 11,694,512.31 : x
  2. Step 2: Convert to fraction form
    20,986,550.60/28,961,145.43 = 11,694,512.31/x
  3. Step 3: Cross multiply
    20,986,550.60x = 28,961,145.43 × 11,694,512.31
  4. Step 4: Simplify right side
    20,986,550.60x = 338,686,471,742,835.25
  5. Step 5: Solve for x
    x = 338,686,471,742,835.25/20,986,550.60
  6. Step 6: Final answer
    x = 16,138,262.94

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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.