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Finding the Third Proportional to 13,201,776 and 21,006,621

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Solution

The third proportional to 13,201,776 and 21,006,621 is: 33,425,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201,776 : 21,006,621 = 21,006,621 : x
  2. Step 2: Convert to fraction form
    13,201,776/21,006,621 = 21,006,621/x
  3. Step 3: Cross multiply
    13,201,776x = 21,006,621 × 21,006,621
  4. Step 4: Simplify right side
    13,201,776x = 441,278,125,837,641
  5. Step 5: Solve for x
    x = 441,278,125,837,641/13,201,776
  6. Step 6: Final answer
    x = 33,425,663.78

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.