Home / 259,131,650.52-388,698,213.24-74,914,123.26

Finding the Fourth Proportional to 259,131,650.52, 388,698,213.24 and 74,914,123.26

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Solution

The fourth proportional to 259,131,650.52, 388,698,213.24 and 74,914,123.26 is: 112,371,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,131,650.52 : 388,698,213.24 = 74,914,123.26 : x
  2. Step 2: Convert to fraction form
    259,131,650.52/388,698,213.24 = 74,914,123.26/x
  3. Step 3: Cross multiply
    259,131,650.52x = 388,698,213.24 × 74,914,123.26
  4. Step 4: Simplify right side
    259,131,650.52x = 29,118,985,857,603,128
  5. Step 5: Solve for x
    x = 29,118,985,857,603,128/259,131,650.52
  6. Step 6: Final answer
    x = 112,371,398.09

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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.