Home / 685,229,287.62-945,617,616.52-371,963,713.80

Finding the Fourth Proportional to 685,229,287.62, 945,617,616.52 and 371,963,713.80

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Solution

The fourth proportional to 685,229,287.62, 945,617,616.52 and 371,963,713.80 is: 513,310,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,229,287.62 : 945,617,616.52 = 371,963,713.80 : x
  2. Step 2: Convert to fraction form
    685,229,287.62/945,617,616.52 = 371,963,713.80/x
  3. Step 3: Cross multiply
    685,229,287.62x = 945,617,616.52 × 371,963,713.80
  4. Step 4: Simplify right side
    685,229,287.62x = 351,735,440,475,483,456
  5. Step 5: Solve for x
    x = 351,735,440,475,483,456/685,229,287.62
  6. Step 6: Final answer
    x = 513,310,576.23

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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.