Home / 205,231,315.12-307,846,972.37-51,877,371.55

Finding the Fourth Proportional to 205,231,315.12, 307,846,972.37 and 51,877,371.55

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Solution

The fourth proportional to 205,231,315.12, 307,846,972.37 and 51,877,371.55 is: 77,816,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,231,315.12 : 307,846,972.37 = 51,877,371.55 : x
  2. Step 2: Convert to fraction form
    205,231,315.12/307,846,972.37 = 51,877,371.55/x
  3. Step 3: Cross multiply
    205,231,315.12x = 307,846,972.37 × 51,877,371.55
  4. Step 4: Simplify right side
    205,231,315.12x = 15,970,291,766,181,074
  5. Step 5: Solve for x
    x = 15,970,291,766,181,074/205,231,315.12
  6. Step 6: Final answer
    x = 77,816,057.25

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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.