Home / 305,350,105.32-421,529,503.14-187,976,046.06

Finding the Fourth Proportional to 305,350,105.32, 421,529,503.14 and 187,976,046.06

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Solution

The fourth proportional to 305,350,105.32, 421,529,503.14 and 187,976,046.06 is: 259,497,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,350,105.32 : 421,529,503.14 = 187,976,046.06 : x
  2. Step 2: Convert to fraction form
    305,350,105.32/421,529,503.14 = 187,976,046.06/x
  3. Step 3: Cross multiply
    305,350,105.32x = 421,529,503.14 × 187,976,046.06
  4. Step 4: Simplify right side
    305,350,105.32x = 79,237,449,297,893,552
  5. Step 5: Solve for x
    x = 79,237,449,297,893,552/305,350,105.32
  6. Step 6: Final answer
    x = 259,497,042.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.