Home / 3,855,868.20-5,321,098.62-2,137,099.68

Finding the Fourth Proportional to 3,855,868.20, 5,321,098.62 and 2,137,099.68

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Solution

The fourth proportional to 3,855,868.20, 5,321,098.62 and 2,137,099.68 is: 2,949,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,868.20 : 5,321,098.62 = 2,137,099.68 : x
  2. Step 2: Convert to fraction form
    3,855,868.20/5,321,098.62 = 2,137,099.68/x
  3. Step 3: Cross multiply
    3,855,868.20x = 5,321,098.62 × 2,137,099.68
  4. Step 4: Simplify right side
    3,855,868.20x = 11,371,718,158,050.44
  5. Step 5: Solve for x
    x = 11,371,718,158,050.44/3,855,868.20
  6. Step 6: Final answer
    x = 2,949,197.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.