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Finding the Third Proportional to 21,197,027 and 45,915,491

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Solution

The third proportional to 21,197,027 and 45,915,491 is: 99,458,868.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197,027 : 45,915,491 = 45,915,491 : x
  2. Step 2: Convert to fraction form
    21,197,027/45,915,491 = 45,915,491/x
  3. Step 3: Cross multiply
    21,197,027x = 45,915,491 × 45,915,491
  4. Step 4: Simplify right side
    21,197,027x = 2,108,232,313,771,081
  5. Step 5: Solve for x
    x = 2,108,232,313,771,081/21,197,027
  6. Step 6: Final answer
    x = 99,458,868.16

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.