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Finding the Third Proportional to 178,159,666 and 372,608,918

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Solution

The third proportional to 178,159,666 and 372,608,918 is: 779,286,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,159,666 : 372,608,918 = 372,608,918 : x
  2. Step 2: Convert to fraction form
    178,159,666/372,608,918 = 372,608,918/x
  3. Step 3: Cross multiply
    178,159,666x = 372,608,918 × 372,608,918
  4. Step 4: Simplify right side
    178,159,666x = 138,837,405,773,130,720
  5. Step 5: Solve for x
    x = 138,837,405,773,130,720/178,159,666
  6. Step 6: Final answer
    x = 779,286,405.79

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.