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Finding the Third Proportional to 12,849,698 and 20,663,859

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Solution

The third proportional to 12,849,698 and 20,663,859 is: 33,229,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849,698 : 20,663,859 = 20,663,859 : x
  2. Step 2: Convert to fraction form
    12,849,698/20,663,859 = 20,663,859/x
  3. Step 3: Cross multiply
    12,849,698x = 20,663,859 × 20,663,859
  4. Step 4: Simplify right side
    12,849,698x = 426,995,068,771,881
  5. Step 5: Solve for x
    x = 426,995,068,771,881/12,849,698
  6. Step 6: Final answer
    x = 33,229,969.20

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.