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Finding the Third Proportional to 15,322,342,640 and 21,567,832,453

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Solution

The third proportional to 15,322,342,640 and 21,567,832,453 is: 30,359,025,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,342,640 : 21,567,832,453 = 21,567,832,453 : x
  2. Step 2: Convert to fraction form
    15,322,342,640/21,567,832,453 = 21,567,832,453/x
  3. Step 3: Cross multiply
    15,322,342,640x = 21,567,832,453 × 21,567,832,453
  4. Step 4: Simplify right side
    15,322,342,640x = 465,171,396,720,679,976,960
  5. Step 5: Solve for x
    x = 465,171,396,720,679,976,960/15,322,342,640
  6. Step 6: Final answer
    x = 30,359,025,878.09

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.