Home / 68,761,602.57-103,131,186.93-20,228,109.87

Finding the Fourth Proportional to 68,761,602.57, 103,131,186.93 and 20,228,109.87

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Solution

The fourth proportional to 68,761,602.57, 103,131,186.93 and 20,228,109.87 is: 30,338,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,761,602.57 : 103,131,186.93 = 20,228,109.87 : x
  2. Step 2: Convert to fraction form
    68,761,602.57/103,131,186.93 = 20,228,109.87/x
  3. Step 3: Cross multiply
    68,761,602.57x = 103,131,186.93 × 20,228,109.87
  4. Step 4: Simplify right side
    68,761,602.57x = 2,086,148,980,243,548.25
  5. Step 5: Solve for x
    x = 2,086,148,980,243,548.25/68,761,602.57
  6. Step 6: Final answer
    x = 30,338,865.04

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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.