Home / 172,355,105.25-257,921,988.75

Finding the Third Proportional to 172,355,105.25 and 257,921,988.75

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Solution

The third proportional to 172,355,105.25 and 257,921,988.75 is: 385,969,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,355,105.25 : 257,921,988.75 = 257,921,988.75 : x
  2. Step 2: Convert to fraction form
    172,355,105.25/257,921,988.75 = 257,921,988.75/x
  3. Step 3: Cross multiply
    172,355,105.25x = 257,921,988.75 × 257,921,988.75
  4. Step 4: Simplify right side
    172,355,105.25x = 66,523,752,280,755,128
  5. Step 5: Solve for x
    x = 66,523,752,280,755,128/172,355,105.25
  6. Step 6: Final answer
    x = 385,969,143.09

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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.