Home / 139,188,329.84-192,058,542.91-80,439,650.20

Finding the Fourth Proportional to 139,188,329.84, 192,058,542.91 and 80,439,650.20

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Solution

The fourth proportional to 139,188,329.84, 192,058,542.91 and 80,439,650.20 is: 110,994,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,188,329.84 : 192,058,542.91 = 80,439,650.20 : x
  2. Step 2: Convert to fraction form
    139,188,329.84/192,058,542.91 = 80,439,650.20/x
  3. Step 3: Cross multiply
    139,188,329.84x = 192,058,542.91 × 80,439,650.20
  4. Step 4: Simplify right side
    139,188,329.84x = 15,449,122,008,239,598
  5. Step 5: Solve for x
    x = 15,449,122,008,239,598/139,188,329.84
  6. Step 6: Final answer
    x = 110,994,377.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.