Home / 7,990,712.20-11,972,290.20-3,722,125.60

Finding the Fourth Proportional to 7,990,712.20, 11,972,290.20 and 3,722,125.60

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Solution

The fourth proportional to 7,990,712.20, 11,972,290.20 and 3,722,125.60 is: 5,576,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,712.20 : 11,972,290.20 = 3,722,125.60 : x
  2. Step 2: Convert to fraction form
    7,990,712.20/11,972,290.20 = 3,722,125.60/x
  3. Step 3: Cross multiply
    7,990,712.20x = 11,972,290.20 × 3,722,125.60
  4. Step 4: Simplify right side
    7,990,712.20x = 44,562,367,844,049.12
  5. Step 5: Solve for x
    x = 44,562,367,844,049.12/7,990,712.20
  6. Step 6: Final answer
    x = 5,576,770.47

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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.