Home / 20,145,339.78-27,799,238.79-11,326,150.50

Finding the Fourth Proportional to 20,145,339.78, 27,799,238.79 and 11,326,150.50

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Solution

The fourth proportional to 20,145,339.78, 27,799,238.79 and 11,326,150.50 is: 15,629,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145,339.78 : 27,799,238.79 = 11,326,150.50 : x
  2. Step 2: Convert to fraction form
    20,145,339.78/27,799,238.79 = 11,326,150.50/x
  3. Step 3: Cross multiply
    20,145,339.78x = 27,799,238.79 × 11,326,150.50
  4. Step 4: Simplify right side
    20,145,339.78x = 314,858,362,320,977.88
  5. Step 5: Solve for x
    x = 314,858,362,320,977.88/20,145,339.78
  6. Step 6: Final answer
    x = 15,629,339.88

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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.