Home / 18,380,525.89-27,573,781.20-5,427,986.62

Finding the Fourth Proportional to 18,380,525.89, 27,573,781.20 and 5,427,986.62

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Solution

The fourth proportional to 18,380,525.89, 27,573,781.20 and 5,427,986.62 is: 8,142,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380,525.89 : 27,573,781.20 = 5,427,986.62 : x
  2. Step 2: Convert to fraction form
    18,380,525.89/27,573,781.20 = 5,427,986.62/x
  3. Step 3: Cross multiply
    18,380,525.89x = 27,573,781.20 × 5,427,986.62
  4. Step 4: Simplify right side
    18,380,525.89x = 149,670,115,416,407.53
  5. Step 5: Solve for x
    x = 149,670,115,416,407.53/18,380,525.89
  6. Step 6: Final answer
    x = 8,142,863.61

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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.