Home / 18,231,811,620.63-27,379,014,019.11-11,190,640,967.68

Finding the Fourth Proportional to 18,231,811,620.63, 27,379,014,019.11 and 11,190,640,967.68

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Solution

The fourth proportional to 18,231,811,620.63, 27,379,014,019.11 and 11,190,640,967.68 is: 16,805,171,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,811,620.63 : 27,379,014,019.11 = 11,190,640,967.68 : x
  2. Step 2: Convert to fraction form
    18,231,811,620.63/27,379,014,019.11 = 11,190,640,967.68/x
  3. Step 3: Cross multiply
    18,231,811,620.63x = 27,379,014,019.11 × 11,190,640,967.68
  4. Step 4: Simplify right side
    18,231,811,620.63x = 306,388,715,936,744,538,112
  5. Step 5: Solve for x
    x = 306,388,715,936,744,538,112/18,231,811,620.63
  6. Step 6: Final answer
    x = 16,805,171,220.07

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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.