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Finding the Third Proportional to 68,131,568 and 149,453,556

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Solution

The third proportional to 68,131,568 and 149,453,556 is: 327,841,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,131,568 : 149,453,556 = 149,453,556 : x
  2. Step 2: Convert to fraction form
    68,131,568/149,453,556 = 149,453,556/x
  3. Step 3: Cross multiply
    68,131,568x = 149,453,556 × 149,453,556
  4. Step 4: Simplify right side
    68,131,568x = 22,336,365,401,045,136
  5. Step 5: Solve for x
    x = 22,336,365,401,045,136/68,131,568
  6. Step 6: Final answer
    x = 327,841,646.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.