Home / 393,719,540.52-590,442,546.72-219,109,037.64

Finding the Fourth Proportional to 393,719,540.52, 590,442,546.72 and 219,109,037.64

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Solution

The fourth proportional to 393,719,540.52, 590,442,546.72 and 219,109,037.64 is: 328,587,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,719,540.52 : 590,442,546.72 = 219,109,037.64 : x
  2. Step 2: Convert to fraction form
    393,719,540.52/590,442,546.72 = 219,109,037.64/x
  3. Step 3: Cross multiply
    393,719,540.52x = 590,442,546.72 × 219,109,037.64
  4. Step 4: Simplify right side
    393,719,540.52x = 129,371,298,193,529,936
  5. Step 5: Solve for x
    x = 129,371,298,193,529,936/393,719,540.52
  6. Step 6: Final answer
    x = 328,587,445.83

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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.