Home / 128,305,618.80-192,448,760.04-40,863,608.88

Finding the Fourth Proportional to 128,305,618.80, 192,448,760.04 and 40,863,608.88

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Solution

The fourth proportional to 128,305,618.80, 192,448,760.04 and 40,863,608.88 is: 61,292,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,305,618.80 : 192,448,760.04 = 40,863,608.88 : x
  2. Step 2: Convert to fraction form
    128,305,618.80/192,448,760.04 = 40,863,608.88/x
  3. Step 3: Cross multiply
    128,305,618.80x = 192,448,760.04 × 40,863,608.88
  4. Step 4: Simplify right side
    128,305,618.80x = 7,864,150,859,715,533
  5. Step 5: Solve for x
    x = 7,864,150,859,715,533/128,305,618.80
  6. Step 6: Final answer
    x = 61,292,334.14

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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.