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Finding the Third Proportional to 18,279,564 and 39,705,819

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Solution

The third proportional to 18,279,564 and 39,705,819 is: 86,246,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279,564 : 39,705,819 = 39,705,819 : x
  2. Step 2: Convert to fraction form
    18,279,564/39,705,819 = 39,705,819/x
  3. Step 3: Cross multiply
    18,279,564x = 39,705,819 × 39,705,819
  4. Step 4: Simplify right side
    18,279,564x = 1,576,552,062,460,761
  5. Step 5: Solve for x
    x = 1,576,552,062,460,761/18,279,564
  6. Step 6: Final answer
    x = 86,246,699.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.