Home / 425,718,516.20-638,577,774.30-323,681,844.20

Finding the Fourth Proportional to 425,718,516.20, 638,577,774.30 and 323,681,844.20

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Solution

The fourth proportional to 425,718,516.20, 638,577,774.30 and 323,681,844.20 is: 485,522,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,718,516.20 : 638,577,774.30 = 323,681,844.20 : x
  2. Step 2: Convert to fraction form
    425,718,516.20/638,577,774.30 = 323,681,844.20/x
  3. Step 3: Cross multiply
    425,718,516.20x = 638,577,774.30 × 323,681,844.20
  4. Step 4: Simplify right side
    425,718,516.20x = 206,696,031,650,555,328
  5. Step 5: Solve for x
    x = 206,696,031,650,555,328/425,718,516.20
  6. Step 6: Final answer
    x = 485,522,766.30

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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.