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Finding the Third Proportional to 5,387,791 and 8,365,031

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Solution

The third proportional to 5,387,791 and 8,365,031 is: 12,987,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,791 : 8,365,031 = 8,365,031 : x
  2. Step 2: Convert to fraction form
    5,387,791/8,365,031 = 8,365,031/x
  3. Step 3: Cross multiply
    5,387,791x = 8,365,031 × 8,365,031
  4. Step 4: Simplify right side
    5,387,791x = 69,973,743,630,961
  5. Step 5: Solve for x
    x = 69,973,743,630,961/5,387,791
  6. Step 6: Final answer
    x = 12,987,464.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.