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Finding the Third Proportional to 6,987,280 and 15,204,740

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Solution

The third proportional to 6,987,280 and 15,204,740 is: 33,086,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987,280 : 15,204,740 = 15,204,740 : x
  2. Step 2: Convert to fraction form
    6,987,280/15,204,740 = 15,204,740/x
  3. Step 3: Cross multiply
    6,987,280x = 15,204,740 × 15,204,740
  4. Step 4: Simplify right side
    6,987,280x = 231,184,118,467,600
  5. Step 5: Solve for x
    x = 231,184,118,467,600/6,987,280
  6. Step 6: Final answer
    x = 33,086,425.40

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.