Home / 3,899,844.79-5,383,138.57-2,680,187.69

Finding the Fourth Proportional to 3,899,844.79, 5,383,138.57 and 2,680,187.69

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Solution

The fourth proportional to 3,899,844.79, 5,383,138.57 and 2,680,187.69 is: 3,699,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,844.79 : 5,383,138.57 = 2,680,187.69 : x
  2. Step 2: Convert to fraction form
    3,899,844.79/5,383,138.57 = 2,680,187.69/x
  3. Step 3: Cross multiply
    3,899,844.79x = 5,383,138.57 × 2,680,187.69
  4. Step 4: Simplify right side
    3,899,844.79x = 14,427,821,735,635.58
  5. Step 5: Solve for x
    x = 14,427,821,735,635.58/3,899,844.79
  6. Step 6: Final answer
    x = 3,699,588.71

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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.