Home / 68,761,603.58-103,131,188.42-20,228,110.88

Finding the Fourth Proportional to 68,761,603.58, 103,131,188.42 and 20,228,110.88

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Solution

The fourth proportional to 68,761,603.58, 103,131,188.42 and 20,228,110.88 is: 30,338,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,761,603.58 : 103,131,188.42 = 20,228,110.88 : x
  2. Step 2: Convert to fraction form
    68,761,603.58/103,131,188.42 = 20,228,110.88/x
  3. Step 3: Cross multiply
    68,761,603.58x = 103,131,188.42 × 20,228,110.88
  4. Step 4: Simplify right side
    68,761,603.58x = 2,086,149,114,545,932
  5. Step 5: Solve for x
    x = 2,086,149,114,545,932/68,761,603.58
  6. Step 6: Final answer
    x = 30,338,866.55

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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.