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Finding the Third Proportional to 74,154,943 and 156,717,431

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Solution

The third proportional to 74,154,943 and 156,717,431 is: 331,203,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154,943 : 156,717,431 = 156,717,431 : x
  2. Step 2: Convert to fraction form
    74,154,943/156,717,431 = 156,717,431/x
  3. Step 3: Cross multiply
    74,154,943x = 156,717,431 × 156,717,431
  4. Step 4: Simplify right side
    74,154,943x = 24,560,353,179,239,760
  5. Step 5: Solve for x
    x = 24,560,353,179,239,760/74,154,943
  6. Step 6: Final answer
    x = 331,203,183.30

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.