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Finding the Third Proportional to 108,857,389 and 168,551,286

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Solution

The third proportional to 108,857,389 and 168,551,286 is: 260,979,399.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,857,389 : 168,551,286 = 168,551,286 : x
  2. Step 2: Convert to fraction form
    108,857,389/168,551,286 = 168,551,286/x
  3. Step 3: Cross multiply
    108,857,389x = 168,551,286 × 168,551,286
  4. Step 4: Simplify right side
    108,857,389x = 28,409,536,012,253,796
  5. Step 5: Solve for x
    x = 28,409,536,012,253,796/108,857,389
  6. Step 6: Final answer
    x = 260,979,399.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.