Home / 18,231,811,620.75-27,379,014,019.30-11,190,640,967.80

Finding the Fourth Proportional to 18,231,811,620.75, 27,379,014,019.30 and 11,190,640,967.80

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Solution

The fourth proportional to 18,231,811,620.75, 27,379,014,019.30 and 11,190,640,967.80 is: 16,805,171,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,811,620.75 : 27,379,014,019.30 = 11,190,640,967.80 : x
  2. Step 2: Convert to fraction form
    18,231,811,620.75/27,379,014,019.30 = 11,190,640,967.80/x
  3. Step 3: Cross multiply
    18,231,811,620.75x = 27,379,014,019.30 × 11,190,640,967.80
  4. Step 4: Simplify right side
    18,231,811,620.75x = 306,388,715,942,293,143,552
  5. Step 5: Solve for x
    x = 306,388,715,942,293,143,552/18,231,811,620.75
  6. Step 6: Final answer
    x = 16,805,171,220.26

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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.