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Finding the Third Proportional to 5,639,472 and 11,921,841

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Solution

The third proportional to 5,639,472 and 11,921,841 is: 25,202,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639,472 : 11,921,841 = 11,921,841 : x
  2. Step 2: Convert to fraction form
    5,639,472/11,921,841 = 11,921,841/x
  3. Step 3: Cross multiply
    5,639,472x = 11,921,841 × 11,921,841
  4. Step 4: Simplify right side
    5,639,472x = 142,130,292,829,281
  5. Step 5: Solve for x
    x = 142,130,292,829,281/5,639,472
  6. Step 6: Final answer
    x = 25,202,765.94

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.