Home / 43,703,073.20-65,554,609.80-20,978,490.80

Finding the Fourth Proportional to 43,703,073.20, 65,554,609.80 and 20,978,490.80

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Solution

The fourth proportional to 43,703,073.20, 65,554,609.80 and 20,978,490.80 is: 31,467,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,703,073.20 : 65,554,609.80 = 20,978,490.80 : x
  2. Step 2: Convert to fraction form
    43,703,073.20/65,554,609.80 = 20,978,490.80/x
  3. Step 3: Cross multiply
    43,703,073.20x = 65,554,609.80 × 20,978,490.80
  4. Step 4: Simplify right side
    43,703,073.20x = 1,375,236,778,586,889.75
  5. Step 5: Solve for x
    x = 1,375,236,778,586,889.75/43,703,073.20
  6. Step 6: Final answer
    x = 31,467,736.20

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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.