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Finding the Fourth Proportional to 341,657,998.40, 512,486,997.60 and 225,431,851.70

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Solution

The fourth proportional to 341,657,998.40, 512,486,997.60 and 225,431,851.70 is: 338,147,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,657,998.40 : 512,486,997.60 = 225,431,851.70 : x
  2. Step 2: Convert to fraction form
    341,657,998.40/512,486,997.60 = 225,431,851.70/x
  3. Step 3: Cross multiply
    341,657,998.40x = 512,486,997.60 × 225,431,851.70
  4. Step 4: Simplify right side
    341,657,998.40x = 115,530,892,841,141,456
  5. Step 5: Solve for x
    x = 115,530,892,841,141,456/341,657,998.40
  6. Step 6: Final answer
    x = 338,147,777.55

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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.