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Finding the Third Proportional to 215,646,300 and 308,376,720

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Solution

The third proportional to 215,646,300 and 308,376,720 is: 440,982,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,646,300 : 308,376,720 = 308,376,720 : x
  2. Step 2: Convert to fraction form
    215,646,300/308,376,720 = 308,376,720/x
  3. Step 3: Cross multiply
    215,646,300x = 308,376,720 × 308,376,720
  4. Step 4: Simplify right side
    215,646,300x = 95,096,201,437,958,400
  5. Step 5: Solve for x
    x = 95,096,201,437,958,400/215,646,300
  6. Step 6: Final answer
    x = 440,982,300.36

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.