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Finding the Third Proportional to 221,144,558 and 479,880,247

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Solution

The third proportional to 221,144,558 and 479,880,247 is: 1,041,332,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,144,558 : 479,880,247 = 479,880,247 : x
  2. Step 2: Convert to fraction form
    221,144,558/479,880,247 = 479,880,247/x
  3. Step 3: Cross multiply
    221,144,558x = 479,880,247 × 479,880,247
  4. Step 4: Simplify right side
    221,144,558x = 230,285,051,460,781,024
  5. Step 5: Solve for x
    x = 230,285,051,460,781,024/221,144,558
  6. Step 6: Final answer
    x = 1,041,332,662.87

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.