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Finding the Third Proportional to 30,702,914 and 66,188,554

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Solution

The third proportional to 30,702,914 and 66,188,554 is: 142,687,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702,914 : 66,188,554 = 66,188,554 : x
  2. Step 2: Convert to fraction form
    30,702,914/66,188,554 = 66,188,554/x
  3. Step 3: Cross multiply
    30,702,914x = 66,188,554 × 66,188,554
  4. Step 4: Simplify right side
    30,702,914x = 4,380,924,680,610,916
  5. Step 5: Solve for x
    x = 4,380,924,680,610,916/30,702,914
  6. Step 6: Final answer
    x = 142,687,585.96

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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.