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Finding the Third Proportional to 40,388,678 and 86,935,948

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Solution

The third proportional to 40,388,678 and 86,935,948 is: 187,128,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388,678 : 86,935,948 = 86,935,948 : x
  2. Step 2: Convert to fraction form
    40,388,678/86,935,948 = 86,935,948/x
  3. Step 3: Cross multiply
    40,388,678x = 86,935,948 × 86,935,948
  4. Step 4: Simplify right side
    40,388,678x = 7,557,859,054,658,704
  5. Step 5: Solve for x
    x = 7,557,859,054,658,704/40,388,678
  6. Step 6: Final answer
    x = 187,128,161.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.