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Finding the Third Proportional to 21,008,976 and 45,698,916

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Solution

The third proportional to 21,008,976 and 45,698,916 is: 99,404,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,976 : 45,698,916 = 45,698,916 : x
  2. Step 2: Convert to fraction form
    21,008,976/45,698,916 = 45,698,916/x
  3. Step 3: Cross multiply
    21,008,976x = 45,698,916 × 45,698,916
  4. Step 4: Simplify right side
    21,008,976x = 2,088,390,923,575,056
  5. Step 5: Solve for x
    x = 2,088,390,923,575,056/21,008,976
  6. Step 6: Final answer
    x = 99,404,698.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.