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Finding the Third Proportional to 172,273,653 and 258,536,475

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Solution

The third proportional to 172,273,653 and 258,536,475 is: 387,993,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,273,653 : 258,536,475 = 258,536,475 : x
  2. Step 2: Convert to fraction form
    172,273,653/258,536,475 = 258,536,475/x
  3. Step 3: Cross multiply
    172,273,653x = 258,536,475 × 258,536,475
  4. Step 4: Simplify right side
    172,273,653x = 66,841,108,905,425,624
  5. Step 5: Solve for x
    x = 66,841,108,905,425,624/172,273,653
  6. Step 6: Final answer
    x = 387,993,797.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.