Home / 111,822,021.20-154,320,741-67,181,646.80

Finding the Fourth Proportional to 111,822,021.20, 154,320,741 and 67,181,646.80

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Solution

The fourth proportional to 111,822,021.20, 154,320,741 and 67,181,646.80 is: 92,714,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,822,021.20 : 154,320,741 = 67,181,646.80 : x
  2. Step 2: Convert to fraction form
    111,822,021.20/154,320,741 = 67,181,646.80/x
  3. Step 3: Cross multiply
    111,822,021.20x = 154,320,741 × 67,181,646.80
  4. Step 4: Simplify right side
    111,822,021.20x = 10,367,521,515,776,278
  5. Step 5: Solve for x
    x = 10,367,521,515,776,278/111,822,021.20
  6. Step 6: Final answer
    x = 92,714,488.65

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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.