Home / 20,262,129.94-27,961,785.39-10,969,797.79

Finding the Fourth Proportional to 20,262,129.94, 27,961,785.39 and 10,969,797.79

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Solution

The fourth proportional to 20,262,129.94, 27,961,785.39 and 10,969,797.79 is: 15,138,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262,129.94 : 27,961,785.39 = 10,969,797.79 : x
  2. Step 2: Convert to fraction form
    20,262,129.94/27,961,785.39 = 10,969,797.79/x
  3. Step 3: Cross multiply
    20,262,129.94x = 27,961,785.39 × 10,969,797.79
  4. Step 4: Simplify right side
    20,262,129.94x = 306,735,131,575,676.25
  5. Step 5: Solve for x
    x = 306,735,131,575,676.25/20,262,129.94
  6. Step 6: Final answer
    x = 15,138,345.89

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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.