Home / 378,991,031.80-568,486,547.70-231,675,586.60

Finding the Fourth Proportional to 378,991,031.80, 568,486,547.70 and 231,675,586.60

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Solution

The fourth proportional to 378,991,031.80, 568,486,547.70 and 231,675,586.60 is: 347,513,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,991,031.80 : 568,486,547.70 = 231,675,586.60 : x
  2. Step 2: Convert to fraction form
    378,991,031.80/568,486,547.70 = 231,675,586.60/x
  3. Step 3: Cross multiply
    378,991,031.80x = 568,486,547.70 × 231,675,586.60
  4. Step 4: Simplify right side
    378,991,031.80x = 131,704,454,412,606,384
  5. Step 5: Solve for x
    x = 131,704,454,412,606,384/378,991,031.80
  6. Step 6: Final answer
    x = 347,513,379.90

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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.