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Finding the Third Proportional to 30,702,906 and 66,188,538

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Solution

The third proportional to 30,702,906 and 66,188,538 is: 142,687,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702,906 : 66,188,538 = 66,188,538 : x
  2. Step 2: Convert to fraction form
    30,702,906/66,188,538 = 66,188,538/x
  3. Step 3: Cross multiply
    30,702,906x = 66,188,538 × 66,188,538
  4. Step 4: Simplify right side
    30,702,906x = 4,380,922,562,577,444
  5. Step 5: Solve for x
    x = 4,380,922,562,577,444/30,702,906
  6. Step 6: Final answer
    x = 142,687,554.15

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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.