Home / 213,274,293.78-294,318,453.70-115,489,149.78

Finding the Fourth Proportional to 213,274,293.78, 294,318,453.70 and 115,489,149.78

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Solution

The fourth proportional to 213,274,293.78, 294,318,453.70 and 115,489,149.78 is: 159,374,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,274,293.78 : 294,318,453.70 = 115,489,149.78 : x
  2. Step 2: Convert to fraction form
    213,274,293.78/294,318,453.70 = 115,489,149.78/x
  3. Step 3: Cross multiply
    213,274,293.78x = 294,318,453.70 × 115,489,149.78
  4. Step 4: Simplify right side
    213,274,293.78x = 33,990,587,982,377,296
  5. Step 5: Solve for x
    x = 33,990,587,982,377,296/213,274,293.78
  6. Step 6: Final answer
    x = 159,374,987.86

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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.