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Finding the Third Proportional to 258,408,499 and 397,192,548

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Solution

The third proportional to 258,408,499 and 397,192,548 is: 610,513,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,408,499 : 397,192,548 = 397,192,548 : x
  2. Step 2: Convert to fraction form
    258,408,499/397,192,548 = 397,192,548/x
  3. Step 3: Cross multiply
    258,408,499x = 397,192,548 × 397,192,548
  4. Step 4: Simplify right side
    258,408,499x = 157,761,920,186,732,288
  5. Step 5: Solve for x
    x = 157,761,920,186,732,288/258,408,499
  6. Step 6: Final answer
    x = 610,513,666.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.