Home / 239,696,640.19-330,687,247.72-139,207,971.24

Finding the Fourth Proportional to 239,696,640.19, 330,687,247.72 and 139,207,971.24

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Solution

The fourth proportional to 239,696,640.19, 330,687,247.72 and 139,207,971.24 is: 192,052,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,696,640.19 : 330,687,247.72 = 139,207,971.24 : x
  2. Step 2: Convert to fraction form
    239,696,640.19/330,687,247.72 = 139,207,971.24/x
  3. Step 3: Cross multiply
    239,696,640.19x = 330,687,247.72 × 139,207,971.24
  4. Step 4: Simplify right side
    239,696,640.19x = 46,034,300,870,040,520
  5. Step 5: Solve for x
    x = 46,034,300,870,040,520/239,696,640.19
  6. Step 6: Final answer
    x = 192,052,340.97

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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.