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Finding the Third Proportional to 12,218,457 and 18,116,262

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Solution

The third proportional to 12,218,457 and 18,116,262 is: 26,860,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218,457 : 18,116,262 = 18,116,262 : x
  2. Step 2: Convert to fraction form
    12,218,457/18,116,262 = 18,116,262/x
  3. Step 3: Cross multiply
    12,218,457x = 18,116,262 × 18,116,262
  4. Step 4: Simplify right side
    12,218,457x = 328,198,948,852,644
  5. Step 5: Solve for x
    x = 328,198,948,852,644/12,218,457
  6. Step 6: Final answer
    x = 26,860,916.14

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.