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Finding the Third Proportional to 87,617,770 and 186,962,758

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Solution

The third proportional to 87,617,770 and 186,962,758 is: 398,949,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617,770 : 186,962,758 = 186,962,758 : x
  2. Step 2: Convert to fraction form
    87,617,770/186,962,758 = 186,962,758/x
  3. Step 3: Cross multiply
    87,617,770x = 186,962,758 × 186,962,758
  4. Step 4: Simplify right side
    87,617,770x = 34,955,072,878,966,564
  5. Step 5: Solve for x
    x = 34,955,072,878,966,564/87,617,770
  6. Step 6: Final answer
    x = 398,949,583.85

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.