Home / 3,855,870.20-5,321,101.38-2,137,101.68

Finding the Fourth Proportional to 3,855,870.20, 5,321,101.38 and 2,137,101.68

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Solution

The fourth proportional to 3,855,870.20, 5,321,101.38 and 2,137,101.68 is: 2,949,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,870.20 : 5,321,101.38 = 2,137,101.68 : x
  2. Step 2: Convert to fraction form
    3,855,870.20/5,321,101.38 = 2,137,101.68/x
  3. Step 3: Cross multiply
    3,855,870.20x = 5,321,101.38 × 2,137,101.68
  4. Step 4: Simplify right side
    3,855,870.20x = 11,371,734,698,648.32
  5. Step 5: Solve for x
    x = 11,371,734,698,648.32/3,855,870.20
  6. Step 6: Final answer
    x = 2,949,200.60

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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.