Home / 20,383,766.96-28,128,748.92-11,091,373.52

Finding the Fourth Proportional to 20,383,766.96, 28,128,748.92 and 11,091,373.52

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Solution

The fourth proportional to 20,383,766.96, 28,128,748.92 and 11,091,373.52 is: 15,305,633.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,766.96 : 28,128,748.92 = 11,091,373.52 : x
  2. Step 2: Convert to fraction form
    20,383,766.96/28,128,748.92 = 11,091,373.52/x
  3. Step 3: Cross multiply
    20,383,766.96x = 28,128,748.92 × 11,091,373.52
  4. Step 4: Simplify right side
    20,383,766.96x = 311,986,460,922,016.62
  5. Step 5: Solve for x
    x = 311,986,460,922,016.62/20,383,766.96
  6. Step 6: Final answer
    x = 15,305,633.23

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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.