Home / 20,412,920-30,614,542.96-5,839,390.16

Finding the Fourth Proportional to 20,412,920, 30,614,542.96 and 5,839,390.16

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Solution

The fourth proportional to 20,412,920, 30,614,542.96 and 5,839,390.16 is: 8,757,701.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,920 : 30,614,542.96 = 5,839,390.16 : x
  2. Step 2: Convert to fraction form
    20,412,920/30,614,542.96 = 5,839,390.16/x
  3. Step 3: Cross multiply
    20,412,920x = 30,614,542.96 × 5,839,390.16
  4. Step 4: Simplify right side
    20,412,920x = 178,770,260,913,521.28
  5. Step 5: Solve for x
    x = 178,770,260,913,521.28/20,412,920
  6. Step 6: Final answer
    x = 8,757,701.54

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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.