Home / 274,561,998.35-378,918,924.68-155,505,768.35

Finding the Fourth Proportional to 274,561,998.35, 378,918,924.68 and 155,505,768.35

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Solution

The fourth proportional to 274,561,998.35, 378,918,924.68 and 155,505,768.35 is: 214,611,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,561,998.35 : 378,918,924.68 = 155,505,768.35 : x
  2. Step 2: Convert to fraction form
    274,561,998.35/378,918,924.68 = 155,505,768.35/x
  3. Step 3: Cross multiply
    274,561,998.35x = 378,918,924.68 × 155,505,768.35
  4. Step 4: Simplify right side
    274,561,998.35x = 58,924,078,523,941,648
  5. Step 5: Solve for x
    x = 58,924,078,523,941,648/274,561,998.35
  6. Step 6: Final answer
    x = 214,611,194.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.