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Finding the Third Proportional to 8,637,619 and 18,902,374

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Solution

The third proportional to 8,637,619 and 18,902,374 is: 41,365,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637,619 : 18,902,374 = 18,902,374 : x
  2. Step 2: Convert to fraction form
    8,637,619/18,902,374 = 18,902,374/x
  3. Step 3: Cross multiply
    8,637,619x = 18,902,374 × 18,902,374
  4. Step 4: Simplify right side
    8,637,619x = 357,299,742,835,876
  5. Step 5: Solve for x
    x = 357,299,742,835,876/8,637,619
  6. Step 6: Final answer
    x = 41,365,536.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.