Home / 3,855,836.20-5,321,054.48-2,137,067.68

Finding the Fourth Proportional to 3,855,836.20, 5,321,054.48 and 2,137,067.68

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Solution

The fourth proportional to 3,855,836.20, 5,321,054.48 and 2,137,067.68 is: 2,949,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,836.20 : 5,321,054.48 = 2,137,067.68 : x
  2. Step 2: Convert to fraction form
    3,855,836.20/5,321,054.48 = 2,137,067.68/x
  3. Step 3: Cross multiply
    3,855,836.20x = 5,321,054.48 × 2,137,067.68
  4. Step 4: Simplify right side
    3,855,836.20x = 11,371,453,552,727.21
  5. Step 5: Solve for x
    x = 11,371,453,552,727.21/3,855,836.20
  6. Step 6: Final answer
    x = 2,949,153.69

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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.