Home / 68,761,708.52-103,131,349.54-20,228,210.33

Finding the Fourth Proportional to 68,761,708.52, 103,131,349.54 and 20,228,210.33

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Solution

The fourth proportional to 68,761,708.52, 103,131,349.54 and 20,228,210.33 is: 30,339,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,761,708.52 : 103,131,349.54 = 20,228,210.33 : x
  2. Step 2: Convert to fraction form
    68,761,708.52/103,131,349.54 = 20,228,210.33/x
  3. Step 3: Cross multiply
    68,761,708.52x = 103,131,349.54 × 20,228,210.33
  4. Step 4: Simplify right side
    68,761,708.52x = 2,086,162,629,545,641.25
  5. Step 5: Solve for x
    x = 2,086,162,629,545,641.25/68,761,708.52
  6. Step 6: Final answer
    x = 30,339,016.80

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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.