Home / 13,188,747.80-19,783,121.70-12,013,016.60

Finding the Fourth Proportional to 13,188,747.80, 19,783,121.70 and 12,013,016.60

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Solution

The fourth proportional to 13,188,747.80, 19,783,121.70 and 12,013,016.60 is: 18,019,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,747.80 : 19,783,121.70 = 12,013,016.60 : x
  2. Step 2: Convert to fraction form
    13,188,747.80/19,783,121.70 = 12,013,016.60/x
  3. Step 3: Cross multiply
    13,188,747.80x = 19,783,121.70 × 12,013,016.60
  4. Step 4: Simplify right side
    13,188,747.80x = 237,654,969,381,920.22
  5. Step 5: Solve for x
    x = 237,654,969,381,920.22/13,188,747.80
  6. Step 6: Final answer
    x = 18,019,524.90

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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.