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Finding the Third Proportional to 266,627,380 and 415,529,550

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Solution

The third proportional to 266,627,380 and 415,529,550 is: 647,588,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,627,380 : 415,529,550 = 415,529,550 : x
  2. Step 2: Convert to fraction form
    266,627,380/415,529,550 = 415,529,550/x
  3. Step 3: Cross multiply
    266,627,380x = 415,529,550 × 415,529,550
  4. Step 4: Simplify right side
    266,627,380x = 172,664,806,923,202,496
  5. Step 5: Solve for x
    x = 172,664,806,923,202,496/266,627,380
  6. Step 6: Final answer
    x = 647,588,431.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.