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Finding the Third Proportional to 10,364,778 and 21,393,431

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Solution

The third proportional to 10,364,778 and 21,393,431 is: 44,157,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364,778 : 21,393,431 = 21,393,431 : x
  2. Step 2: Convert to fraction form
    10,364,778/21,393,431 = 21,393,431/x
  3. Step 3: Cross multiply
    10,364,778x = 21,393,431 × 21,393,431
  4. Step 4: Simplify right side
    10,364,778x = 457,678,889,951,761
  5. Step 5: Solve for x
    x = 457,678,889,951,761/10,364,778
  6. Step 6: Final answer
    x = 44,157,133.90

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.