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Finding the Third Proportional to 195,310,674 and 421,286,679

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Solution

The third proportional to 195,310,674 and 421,286,679 is: 908,718,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,310,674 : 421,286,679 = 421,286,679 : x
  2. Step 2: Convert to fraction form
    195,310,674/421,286,679 = 421,286,679/x
  3. Step 3: Cross multiply
    195,310,674x = 421,286,679 × 421,286,679
  4. Step 4: Simplify right side
    195,310,674x = 177,482,465,902,849,056
  5. Step 5: Solve for x
    x = 177,482,465,902,849,056/195,310,674
  6. Step 6: Final answer
    x = 908,718,721.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.