Home / 18,491,999.70-27,737,999.55-8,394,620.70

Finding the Fourth Proportional to 18,491,999.70, 27,737,999.55 and 8,394,620.70

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Solution

The fourth proportional to 18,491,999.70, 27,737,999.55 and 8,394,620.70 is: 12,591,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491,999.70 : 27,737,999.55 = 8,394,620.70 : x
  2. Step 2: Convert to fraction form
    18,491,999.70/27,737,999.55 = 8,394,620.70/x
  3. Step 3: Cross multiply
    18,491,999.70x = 27,737,999.55 × 8,394,620.70
  4. Step 4: Simplify right side
    18,491,999.70x = 232,849,985,199,020.66
  5. Step 5: Solve for x
    x = 232,849,985,199,020.66/18,491,999.70
  6. Step 6: Final answer
    x = 12,591,931.05

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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.