Home / 5,147,019.20-7,722,400.80-1,781,566.40

Finding the Fourth Proportional to 5,147,019.20, 7,722,400.80 and 1,781,566.40

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Solution

The fourth proportional to 5,147,019.20, 7,722,400.80 and 1,781,566.40 is: 2,672,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,019.20 : 7,722,400.80 = 1,781,566.40 : x
  2. Step 2: Convert to fraction form
    5,147,019.20/7,722,400.80 = 1,781,566.40/x
  3. Step 3: Cross multiply
    5,147,019.20x = 7,722,400.80 × 1,781,566.40
  4. Step 4: Simplify right side
    5,147,019.20x = 13,757,969,792,613.12
  5. Step 5: Solve for x
    x = 13,757,969,792,613.12/5,147,019.20
  6. Step 6: Final answer
    x = 2,672,997.57

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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.