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Finding the Third Proportional to 21,008,954 and 45,698,872

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Solution

The third proportional to 21,008,954 and 45,698,872 is: 99,404,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,954 : 45,698,872 = 45,698,872 : x
  2. Step 2: Convert to fraction form
    21,008,954/45,698,872 = 45,698,872/x
  3. Step 3: Cross multiply
    21,008,954x = 45,698,872 × 45,698,872
  4. Step 4: Simplify right side
    21,008,954x = 2,088,386,902,072,384
  5. Step 5: Solve for x
    x = 2,088,386,902,072,384/21,008,954
  6. Step 6: Final answer
    x = 99,404,611.10

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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.