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Finding the Third Proportional to 217,487,260 and 329,389,680

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Solution

The third proportional to 217,487,260 and 329,389,680 is: 498,868,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,487,260 : 329,389,680 = 329,389,680 : x
  2. Step 2: Convert to fraction form
    217,487,260/329,389,680 = 329,389,680/x
  3. Step 3: Cross multiply
    217,487,260x = 329,389,680 × 329,389,680
  4. Step 4: Simplify right side
    217,487,260x = 108,497,561,290,502,400
  5. Step 5: Solve for x
    x = 108,497,561,290,502,400/217,487,260
  6. Step 6: Final answer
    x = 498,868,583.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.