Home / 378,991,020.30-568,486,530.45-231,675,575.10

Finding the Fourth Proportional to 378,991,020.30, 568,486,530.45 and 231,675,575.10

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Solution

The fourth proportional to 378,991,020.30, 568,486,530.45 and 231,675,575.10 is: 347,513,362.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,991,020.30 : 568,486,530.45 = 231,675,575.10 : x
  2. Step 2: Convert to fraction form
    378,991,020.30/568,486,530.45 = 231,675,575.10/x
  3. Step 3: Cross multiply
    378,991,020.30x = 568,486,530.45 × 231,675,575.10
  4. Step 4: Simplify right side
    378,991,020.30x = 131,704,443,878,607,424
  5. Step 5: Solve for x
    x = 131,704,443,878,607,424/378,991,020.30
  6. Step 6: Final answer
    x = 347,513,362.65

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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.