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Finding the Fourth Proportional to 339,979,650.60, 510,179,427.90 and 135,486,402.60

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Solution

The fourth proportional to 339,979,650.60, 510,179,427.90 and 135,486,402.60 is: 203,313,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,979,650.60 : 510,179,427.90 = 135,486,402.60 : x
  2. Step 2: Convert to fraction form
    339,979,650.60/510,179,427.90 = 135,486,402.60/x
  3. Step 3: Cross multiply
    339,979,650.60x = 510,179,427.90 × 135,486,402.60
  4. Step 4: Simplify right side
    339,979,650.60x = 69,122,375,366,697,064
  5. Step 5: Solve for x
    x = 69,122,375,366,697,064/339,979,650.60
  6. Step 6: Final answer
    x = 203,313,272.56

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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.