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Finding the Third Proportional to 11,278,020 and 18,159,258

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Solution

The third proportional to 11,278,020 and 18,159,258 is: 29,239,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278,020 : 18,159,258 = 18,159,258 : x
  2. Step 2: Convert to fraction form
    11,278,020/18,159,258 = 18,159,258/x
  3. Step 3: Cross multiply
    11,278,020x = 18,159,258 × 18,159,258
  4. Step 4: Simplify right side
    11,278,020x = 329,758,651,110,564
  5. Step 5: Solve for x
    x = 329,758,651,110,564/11,278,020
  6. Step 6: Final answer
    x = 29,239,055.36

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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.