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Finding the Third Proportional to 87,937,389 and 117,236,507

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Solution

The third proportional to 87,937,389 and 117,236,507 is: 156,297,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937,389 : 117,236,507 = 117,236,507 : x
  2. Step 2: Convert to fraction form
    87,937,389/117,236,507 = 117,236,507/x
  3. Step 3: Cross multiply
    87,937,389x = 117,236,507 × 117,236,507
  4. Step 4: Simplify right side
    87,937,389x = 13,744,398,573,561,048
  5. Step 5: Solve for x
    x = 13,744,398,573,561,048/87,937,389
  6. Step 6: Final answer
    x = 156,297,551.36

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.