Home / 43,703,072.20-65,554,608.30-20,978,489.80

Finding the Fourth Proportional to 43,703,072.20, 65,554,608.30 and 20,978,489.80

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Solution

The fourth proportional to 43,703,072.20, 65,554,608.30 and 20,978,489.80 is: 31,467,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,703,072.20 : 65,554,608.30 = 20,978,489.80 : x
  2. Step 2: Convert to fraction form
    43,703,072.20/65,554,608.30 = 20,978,489.80/x
  3. Step 3: Cross multiply
    43,703,072.20x = 65,554,608.30 × 20,978,489.80
  4. Step 4: Simplify right side
    43,703,072.20x = 1,375,236,681,564,545.25
  5. Step 5: Solve for x
    x = 1,375,236,681,564,545.25/43,703,072.20
  6. Step 6: Final answer
    x = 31,467,734.70

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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.