Home / 7,990,717.20-11,972,297.70-3,722,130.60

Finding the Fourth Proportional to 7,990,717.20, 11,972,297.70 and 3,722,130.60

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Solution

The fourth proportional to 7,990,717.20, 11,972,297.70 and 3,722,130.60 is: 5,576,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,717.20 : 11,972,297.70 = 3,722,130.60 : x
  2. Step 2: Convert to fraction form
    7,990,717.20/11,972,297.70 = 3,722,130.60/x
  3. Step 3: Cross multiply
    7,990,717.20x = 11,972,297.70 × 3,722,130.60
  4. Step 4: Simplify right side
    7,990,717.20x = 44,562,455,621,479.62
  5. Step 5: Solve for x
    x = 44,562,455,621,479.62/7,990,717.20
  6. Step 6: Final answer
    x = 5,576,777.97

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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.