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Finding the Third Proportional to 215,894,168 and 331,637,100

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Solution

The third proportional to 215,894,168 and 331,637,100 is: 509,430,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,894,168 : 331,637,100 = 331,637,100 : x
  2. Step 2: Convert to fraction form
    215,894,168/331,637,100 = 331,637,100/x
  3. Step 3: Cross multiply
    215,894,168x = 331,637,100 × 331,637,100
  4. Step 4: Simplify right side
    215,894,168x = 109,983,166,096,410,000
  5. Step 5: Solve for x
    x = 109,983,166,096,410,000/215,894,168
  6. Step 6: Final answer
    x = 509,430,926.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.