Home / 90,251,851.20-135,328,010.40-36,338,251.20

Finding the Fourth Proportional to 90,251,851.20, 135,328,010.40 and 36,338,251.20

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Solution

The fourth proportional to 90,251,851.20, 135,328,010.40 and 36,338,251.20 is: 54,487,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,251,851.20 : 135,328,010.40 = 36,338,251.20 : x
  2. Step 2: Convert to fraction form
    90,251,851.20/135,328,010.40 = 36,338,251.20/x
  3. Step 3: Cross multiply
    90,251,851.20x = 135,328,010.40 × 36,338,251.20
  4. Step 4: Simplify right side
    90,251,851.20x = 4,917,583,236,311,413
  5. Step 5: Solve for x
    x = 4,917,583,236,311,413/90,251,851.20
  6. Step 6: Final answer
    x = 54,487,339.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.