Home / 159,036,711.80-238,555,067.70-128,803,623.80

Finding the Fourth Proportional to 159,036,711.80, 238,555,067.70 and 128,803,623.80

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Solution

The fourth proportional to 159,036,711.80, 238,555,067.70 and 128,803,623.80 is: 193,205,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,036,711.80 : 238,555,067.70 = 128,803,623.80 : x
  2. Step 2: Convert to fraction form
    159,036,711.80/238,555,067.70 = 128,803,623.80/x
  3. Step 3: Cross multiply
    159,036,711.80x = 238,555,067.70 × 128,803,623.80
  4. Step 4: Simplify right side
    159,036,711.80x = 30,726,757,195,614,328
  5. Step 5: Solve for x
    x = 30,726,757,195,614,328/159,036,711.80
  6. Step 6: Final answer
    x = 193,205,435.70

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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.