Home / 639,139,251.45-957,861,339.45-328,234,309.03

Finding the Fourth Proportional to 639,139,251.45, 957,861,339.45 and 328,234,309.03

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Solution

The fourth proportional to 639,139,251.45, 957,861,339.45 and 328,234,309.03 is: 491,916,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,139,251.45 : 957,861,339.45 = 328,234,309.03 : x
  2. Step 2: Convert to fraction form
    639,139,251.45/957,861,339.45 = 328,234,309.03/x
  3. Step 3: Cross multiply
    639,139,251.45x = 957,861,339.45 × 328,234,309.03
  4. Step 4: Simplify right side
    639,139,251.45x = 314,402,954,900,921,024
  5. Step 5: Solve for x
    x = 314,402,954,900,921,024/639,139,251.45
  6. Step 6: Final answer
    x = 491,916,204.78

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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.