Home / 128,304,007.20-192,456,010.80-119,234,080.80

Finding the Fourth Proportional to 128,304,007.20, 192,456,010.80 and 119,234,080.80

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Solution

The fourth proportional to 128,304,007.20, 192,456,010.80 and 119,234,080.80 is: 178,851,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,007.20 : 192,456,010.80 = 119,234,080.80 : x
  2. Step 2: Convert to fraction form
    128,304,007.20/192,456,010.80 = 119,234,080.80/x
  3. Step 3: Cross multiply
    128,304,007.20x = 192,456,010.80 × 119,234,080.80
  4. Step 4: Simplify right side
    128,304,007.20x = 22,947,315,542,172,872
  5. Step 5: Solve for x
    x = 22,947,315,542,172,872/128,304,007.20
  6. Step 6: Final answer
    x = 178,851,121.20

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1.5x scale

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.