Home / 111,822,019.20-154,320,738.24-67,181,644.80

Finding the Fourth Proportional to 111,822,019.20, 154,320,738.24 and 67,181,644.80

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Solution

The fourth proportional to 111,822,019.20, 154,320,738.24 and 67,181,644.80 is: 92,714,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,822,019.20 : 154,320,738.24 = 67,181,644.80 : x
  2. Step 2: Convert to fraction form
    111,822,019.20/154,320,738.24 = 67,181,644.80/x
  3. Step 3: Cross multiply
    111,822,019.20x = 154,320,738.24 × 67,181,644.80
  4. Step 4: Simplify right side
    111,822,019.20x = 10,367,521,021,713,458
  5. Step 5: Solve for x
    x = 10,367,521,021,713,458/111,822,019.20
  6. Step 6: Final answer
    x = 92,714,485.89

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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.