Home / 639,139,251.33-957,861,339.26-328,234,308.91

Finding the Fourth Proportional to 639,139,251.33, 957,861,339.26 and 328,234,308.91

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Solution

The fourth proportional to 639,139,251.33, 957,861,339.26 and 328,234,308.91 is: 491,916,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,139,251.33 : 957,861,339.26 = 328,234,308.91 : x
  2. Step 2: Convert to fraction form
    639,139,251.33/957,861,339.26 = 328,234,308.91/x
  3. Step 3: Cross multiply
    639,139,251.33x = 957,861,339.26 × 328,234,308.91
  4. Step 4: Simplify right side
    639,139,251.33x = 314,402,954,719,644,416
  5. Step 5: Solve for x
    x = 314,402,954,719,644,416/639,139,251.33
  6. Step 6: Final answer
    x = 491,916,204.59

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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.