Home / 20,383,767.96-28,128,750.30-11,091,374.52

Finding the Fourth Proportional to 20,383,767.96, 28,128,750.30 and 11,091,374.52

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Solution

The fourth proportional to 20,383,767.96, 28,128,750.30 and 11,091,374.52 is: 15,305,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,767.96 : 28,128,750.30 = 11,091,374.52 : x
  2. Step 2: Convert to fraction form
    20,383,767.96/28,128,750.30 = 11,091,374.52/x
  3. Step 3: Cross multiply
    20,383,767.96x = 28,128,750.30 × 11,091,374.52
  4. Step 4: Simplify right side
    20,383,767.96x = 311,986,504,356,862.38
  5. Step 5: Solve for x
    x = 311,986,504,356,862.38/20,383,767.96
  6. Step 6: Final answer
    x = 15,305,634.61

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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.