Home / 312,231,962,652.75-421,274,227,979.25

Finding the Third Proportional to 312,231,962,652.75 and 421,274,227,979.25

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Solution

The third proportional to 312,231,962,652.75 and 421,274,227,979.25 is: 568,397,846,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,231,962,652.75 : 421,274,227,979.25 = 421,274,227,979.25 : x
  2. Step 2: Convert to fraction form
    312,231,962,652.75/421,274,227,979.25 = 421,274,227,979.25/x
  3. Step 3: Cross multiply
    312,231,962,652.75x = 421,274,227,979.25 × 421,274,227,979.25
  4. Step 4: Simplify right side
    312,231,962,652.75x = 177,471,975,159,513,112,117,248
  5. Step 5: Solve for x
    x = 177,471,975,159,513,112,117,248/312,231,962,652.75
  6. Step 6: Final answer
    x = 568,397,846,433.45

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.