Home / 685,143,344.11-945,472,497.24-371,870,832.03

Finding the Fourth Proportional to 685,143,344.11, 945,472,497.24 and 371,870,832.03

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Solution

The fourth proportional to 685,143,344.11, 945,472,497.24 and 371,870,832.03 is: 513,168,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,143,344.11 : 945,472,497.24 = 371,870,832.03 : x
  2. Step 2: Convert to fraction form
    685,143,344.11/945,472,497.24 = 371,870,832.03/x
  3. Step 3: Cross multiply
    685,143,344.11x = 945,472,497.24 × 371,870,832.03
  4. Step 4: Simplify right side
    685,143,344.11x = 351,593,644,214,107,264
  5. Step 5: Solve for x
    x = 351,593,644,214,107,264/685,143,344.11
  6. Step 6: Final answer
    x = 513,168,006.72

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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.