Home / 3,897,067.33-5,378,067.66-2,178,192.25

Finding the Fourth Proportional to 3,897,067.33, 5,378,067.66 and 2,178,192.25

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Solution

The fourth proportional to 3,897,067.33, 5,378,067.66 and 2,178,192.25 is: 3,005,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,067.33 : 5,378,067.66 = 2,178,192.25 : x
  2. Step 2: Convert to fraction form
    3,897,067.33/5,378,067.66 = 2,178,192.25/x
  3. Step 3: Cross multiply
    3,897,067.33x = 5,378,067.66 × 2,178,192.25
  4. Step 4: Simplify right side
    3,897,067.33x = 11,714,465,296,987.63
  5. Step 5: Solve for x
    x = 11,714,465,296,987.63/3,897,067.33
  6. Step 6: Final answer
    x = 3,005,969.44

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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.