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Finding the Third Proportional to 6,531,390 and 9,135,238

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Solution

The third proportional to 6,531,390 and 9,135,238 is: 12,777,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531,390 : 9,135,238 = 9,135,238 : x
  2. Step 2: Convert to fraction form
    6,531,390/9,135,238 = 9,135,238/x
  3. Step 3: Cross multiply
    6,531,390x = 9,135,238 × 9,135,238
  4. Step 4: Simplify right side
    6,531,390x = 83,452,573,316,644
  5. Step 5: Solve for x
    x = 83,452,573,316,644/6,531,390
  6. Step 6: Final answer
    x = 12,777,153.61

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.