Home / 20,542,648.10-28,348,505.80-11,375,094.02

Finding the Fourth Proportional to 20,542,648.10, 28,348,505.80 and 11,375,094.02

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Solution

The fourth proportional to 20,542,648.10, 28,348,505.80 and 11,375,094.02 is: 15,697,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,648.10 : 28,348,505.80 = 11,375,094.02 : x
  2. Step 2: Convert to fraction form
    20,542,648.10/28,348,505.80 = 11,375,094.02/x
  3. Step 3: Cross multiply
    20,542,648.10x = 28,348,505.80 × 11,375,094.02
  4. Step 4: Simplify right side
    20,542,648.10x = 322,466,918,801,515.31
  5. Step 5: Solve for x
    x = 322,466,918,801,515.31/20,542,648.10
  6. Step 6: Final answer
    x = 15,697,436.73

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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.