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Finding the Third Proportional to 66,521,982 and 99,511,725

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Solution

The third proportional to 66,521,982 and 99,511,725 is: 148,861,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521,982 : 99,511,725 = 99,511,725 : x
  2. Step 2: Convert to fraction form
    66,521,982/99,511,725 = 99,511,725/x
  3. Step 3: Cross multiply
    66,521,982x = 99,511,725 × 99,511,725
  4. Step 4: Simplify right side
    66,521,982x = 9,902,583,412,475,624
  5. Step 5: Solve for x
    x = 9,902,583,412,475,624/66,521,982
  6. Step 6: Final answer
    x = 148,861,821.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.