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Finding the Third Proportional to 231,939,978 and 324,438,686

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Solution

The third proportional to 231,939,978 and 324,438,686 is: 453,826,295.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,939,978 : 324,438,686 = 324,438,686 : x
  2. Step 2: Convert to fraction form
    231,939,978/324,438,686 = 324,438,686/x
  3. Step 3: Cross multiply
    231,939,978x = 324,438,686 × 324,438,686
  4. Step 4: Simplify right side
    231,939,978x = 105,260,460,973,406,592
  5. Step 5: Solve for x
    x = 105,260,460,973,406,592/231,939,978
  6. Step 6: Final answer
    x = 453,826,295.41

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.