Home / 378,992,710.80-568,489,066.20-231,677,265.60

Finding the Fourth Proportional to 378,992,710.80, 568,489,066.20 and 231,677,265.60

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Solution

The fourth proportional to 378,992,710.80, 568,489,066.20 and 231,677,265.60 is: 347,515,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,992,710.80 : 568,489,066.20 = 231,677,265.60 : x
  2. Step 2: Convert to fraction form
    378,992,710.80/568,489,066.20 = 231,677,265.60/x
  3. Step 3: Cross multiply
    378,992,710.80x = 568,489,066.20 × 231,677,265.60
  4. Step 4: Simplify right side
    378,992,710.80x = 131,705,992,380,713,392
  5. Step 5: Solve for x
    x = 131,705,992,380,713,392/378,992,710.80
  6. Step 6: Final answer
    x = 347,515,898.40

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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.