Home / 84,206,067.86-126,309,027.92-31,693,550.20

Finding the Fourth Proportional to 84,206,067.86, 126,309,027.92 and 31,693,550.20

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Solution

The fourth proportional to 84,206,067.86, 126,309,027.92 and 31,693,550.20 is: 47,540,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,206,067.86 : 126,309,027.92 = 31,693,550.20 : x
  2. Step 2: Convert to fraction form
    84,206,067.86/126,309,027.92 = 31,693,550.20/x
  3. Step 3: Cross multiply
    84,206,067.86x = 126,309,027.92 × 31,693,550.20
  4. Step 4: Simplify right side
    84,206,067.86x = 4,003,181,517,095,721.50
  5. Step 5: Solve for x
    x = 4,003,181,517,095,721.50/84,206,067.86
  6. Step 6: Final answer
    x = 47,540,297.50

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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.