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Finding the Third Proportional to 21,007,145 and 45,599,530

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Solution

The third proportional to 21,007,145 and 45,599,530 is: 98,981,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,007,145 : 45,599,530 = 45,599,530 : x
  2. Step 2: Convert to fraction form
    21,007,145/45,599,530 = 45,599,530/x
  3. Step 3: Cross multiply
    21,007,145x = 45,599,530 × 45,599,530
  4. Step 4: Simplify right side
    21,007,145x = 2,079,317,136,220,900
  5. Step 5: Solve for x
    x = 2,079,317,136,220,900/21,007,145
  6. Step 6: Final answer
    x = 98,981,424.47

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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.