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Finding the Third Proportional to 30,702,910 and 66,188,546

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Solution

The third proportional to 30,702,910 and 66,188,546 is: 142,687,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702,910 : 66,188,546 = 66,188,546 : x
  2. Step 2: Convert to fraction form
    30,702,910/66,188,546 = 66,188,546/x
  3. Step 3: Cross multiply
    30,702,910x = 66,188,546 × 66,188,546
  4. Step 4: Simplify right side
    30,702,910x = 4,380,923,621,594,116
  5. Step 5: Solve for x
    x = 4,380,923,621,594,116/30,702,910
  6. Step 6: Final answer
    x = 142,687,570.06

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.