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Finding the Third Proportional to 3,979,616,147 and 8,518,273,781

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Solution

The third proportional to 3,979,616,147 and 8,518,273,781 is: 18,233,162,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,616,147 : 8,518,273,781 = 8,518,273,781 : x
  2. Step 2: Convert to fraction form
    3,979,616,147/8,518,273,781 = 8,518,273,781/x
  3. Step 3: Cross multiply
    3,979,616,147x = 8,518,273,781 × 8,518,273,781
  4. Step 4: Simplify right side
    3,979,616,147x = 72,560,988,208,072,032,256
  5. Step 5: Solve for x
    x = 72,560,988,208,072,032,256/3,979,616,147
  6. Step 6: Final answer
    x = 18,233,162,578.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.