Home / 378,765,008.20-568,147,512.30-367,427,600.20

Finding the Fourth Proportional to 378,765,008.20, 568,147,512.30 and 367,427,600.20

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Solution

The fourth proportional to 378,765,008.20, 568,147,512.30 and 367,427,600.20 is: 551,141,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,765,008.20 : 568,147,512.30 = 367,427,600.20 : x
  2. Step 2: Convert to fraction form
    378,765,008.20/568,147,512.30 = 367,427,600.20/x
  3. Step 3: Cross multiply
    378,765,008.20x = 568,147,512.30 × 367,427,600.20
  4. Step 4: Simplify right side
    378,765,008.20x = 208,753,077,003,988,960
  5. Step 5: Solve for x
    x = 208,753,077,003,988,960/378,765,008.20
  6. Step 6: Final answer
    x = 551,141,400.30

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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.