Home / 18,291,378.40-27,437,067.60-11,488,933.60

Finding the Fourth Proportional to 18,291,378.40, 27,437,067.60 and 11,488,933.60

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Solution

The fourth proportional to 18,291,378.40, 27,437,067.60 and 11,488,933.60 is: 17,233,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291,378.40 : 27,437,067.60 = 11,488,933.60 : x
  2. Step 2: Convert to fraction form
    18,291,378.40/27,437,067.60 = 11,488,933.60/x
  3. Step 3: Cross multiply
    18,291,378.40x = 27,437,067.60 × 11,488,933.60
  4. Step 4: Simplify right side
    18,291,378.40x = 315,222,647,835,111.38
  5. Step 5: Solve for x
    x = 315,222,647,835,111.38/18,291,378.40
  6. Step 6: Final answer
    x = 17,233,400.40

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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.