Home / 685,770,319.55-946,362,320.79-372,504,778.54

Finding the Fourth Proportional to 685,770,319.55, 946,362,320.79 and 372,504,778.54

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Solution

The fourth proportional to 685,770,319.55, 946,362,320.79 and 372,504,778.54 is: 514,056,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,770,319.55 : 946,362,320.79 = 372,504,778.54 : x
  2. Step 2: Convert to fraction form
    685,770,319.55/946,362,320.79 = 372,504,778.54/x
  3. Step 3: Cross multiply
    685,770,319.55x = 946,362,320.79 × 372,504,778.54
  4. Step 4: Simplify right side
    685,770,319.55x = 352,524,486,719,747,584
  5. Step 5: Solve for x
    x = 352,524,486,719,747,584/685,770,319.55
  6. Step 6: Final answer
    x = 514,056,203.18

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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.