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Finding the Third Proportional to 3,987,590 and 8,772,652

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Solution

The third proportional to 3,987,590 and 8,772,652 is: 19,299,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,590 : 8,772,652 = 8,772,652 : x
  2. Step 2: Convert to fraction form
    3,987,590/8,772,652 = 8,772,652/x
  3. Step 3: Cross multiply
    3,987,590x = 8,772,652 × 8,772,652
  4. Step 4: Simplify right side
    3,987,590x = 76,959,423,113,104
  5. Step 5: Solve for x
    x = 76,959,423,113,104/3,987,590
  6. Step 6: Final answer
    x = 19,299,733.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.