Home / 205,177,971.33-307,785,876.75-67,004,302.55

Finding the Fourth Proportional to 205,177,971.33, 307,785,876.75 and 67,004,302.55

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Solution

The fourth proportional to 205,177,971.33, 307,785,876.75 and 67,004,302.55 is: 100,512,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,177,971.33 : 307,785,876.75 = 67,004,302.55 : x
  2. Step 2: Convert to fraction form
    205,177,971.33/307,785,876.75 = 67,004,302.55/x
  3. Step 3: Cross multiply
    205,177,971.33x = 307,785,876.75 × 67,004,302.55
  4. Step 4: Simplify right side
    205,177,971.33x = 20,622,978,004,835,080
  5. Step 5: Solve for x
    x = 20,622,978,004,835,080/205,177,971.33
  6. Step 6: Final answer
    x = 100,512,632.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.