Home / 20,845,010.75-28,766,117.57-11,553,180.70

Finding the Fourth Proportional to 20,845,010.75, 28,766,117.57 and 11,553,180.70

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Solution

The fourth proportional to 20,845,010.75, 28,766,117.57 and 11,553,180.70 is: 15,943,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,010.75 : 28,766,117.57 = 11,553,180.70 : x
  2. Step 2: Convert to fraction form
    20,845,010.75/28,766,117.57 = 11,553,180.70/x
  3. Step 3: Cross multiply
    20,845,010.75x = 28,766,117.57 × 11,553,180.70
  4. Step 4: Simplify right side
    20,845,010.75x = 332,340,154,323,654.88
  5. Step 5: Solve for x
    x = 332,340,154,323,654.88/20,845,010.75
  6. Step 6: Final answer
    x = 15,943,390.88

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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.