Home / 31,482,629.73-43,422,902.55-20,866,820.49

Finding the Fourth Proportional to 31,482,629.73, 43,422,902.55 and 20,866,820.49

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Solution

The fourth proportional to 31,482,629.73, 43,422,902.55 and 20,866,820.49 is: 28,780,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482,629.73 : 43,422,902.55 = 20,866,820.49 : x
  2. Step 2: Convert to fraction form
    31,482,629.73/43,422,902.55 = 20,866,820.49/x
  3. Step 3: Cross multiply
    31,482,629.73x = 43,422,902.55 × 20,866,820.49
  4. Step 4: Simplify right side
    31,482,629.73x = 906,097,912,665,613.12
  5. Step 5: Solve for x
    x = 906,097,912,665,613.12/31,482,629.73
  6. Step 6: Final answer
    x = 28,780,883.95

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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.