Home / 639,139,248.95-957,861,335.70-328,234,306.53

Finding the Fourth Proportional to 639,139,248.95, 957,861,335.70 and 328,234,306.53

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Solution

The fourth proportional to 639,139,248.95, 957,861,335.70 and 328,234,306.53 is: 491,916,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,139,248.95 : 957,861,335.70 = 328,234,306.53 : x
  2. Step 2: Convert to fraction form
    639,139,248.95/957,861,335.70 = 328,234,306.53/x
  3. Step 3: Cross multiply
    639,139,248.95x = 957,861,335.70 × 328,234,306.53
  4. Step 4: Simplify right side
    639,139,248.95x = 314,402,951,275,388,992
  5. Step 5: Solve for x
    x = 314,402,951,275,388,992/639,139,248.95
  6. Step 6: Final answer
    x = 491,916,201.03

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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.