Home / 5,419,739.16-8,122,521.78-2,221,120.44

Finding the Fourth Proportional to 5,419,739.16, 8,122,521.78 and 2,221,120.44

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Solution

The fourth proportional to 5,419,739.16, 8,122,521.78 and 2,221,120.44 is: 3,328,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,739.16 : 8,122,521.78 = 2,221,120.44 : x
  2. Step 2: Convert to fraction form
    5,419,739.16/8,122,521.78 = 2,221,120.44/x
  3. Step 3: Cross multiply
    5,419,739.16x = 8,122,521.78 × 2,221,120.44
  4. Step 4: Simplify right side
    5,419,739.16x = 18,041,099,149,903.18
  5. Step 5: Solve for x
    x = 18,041,099,149,903.18/5,419,739.16
  6. Step 6: Final answer
    x = 3,328,776.28

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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.