Home / 685,314,596.46-945,729,064.86-372,040,755.78

Finding the Fourth Proportional to 685,314,596.46, 945,729,064.86 and 372,040,755.78

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Solution

The fourth proportional to 685,314,596.46, 945,729,064.86 and 372,040,755.78 is: 513,413,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,314,596.46 : 945,729,064.86 = 372,040,755.78 : x
  2. Step 2: Convert to fraction form
    685,314,596.46/945,729,064.86 = 372,040,755.78/x
  3. Step 3: Cross multiply
    685,314,596.46x = 945,729,064.86 × 372,040,755.78
  4. Step 4: Simplify right side
    685,314,596.46x = 351,849,756,053,627,008
  5. Step 5: Solve for x
    x = 351,849,756,053,627,008/685,314,596.46
  6. Step 6: Final answer
    x = 513,413,486.11

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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.