Home / 111,978,999-168,034,633.38-47,278,616.04

Finding the Fourth Proportional to 111,978,999, 168,034,633.38 and 47,278,616.04

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Solution

The fourth proportional to 111,978,999, 168,034,633.38 and 47,278,616.04 is: 70,945,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,978,999 : 168,034,633.38 = 47,278,616.04 : x
  2. Step 2: Convert to fraction form
    111,978,999/168,034,633.38 = 47,278,616.04/x
  3. Step 3: Cross multiply
    111,978,999x = 168,034,633.38 × 47,278,616.04
  4. Step 4: Simplify right side
    111,978,999x = 7,944,444,912,995,187
  5. Step 5: Solve for x
    x = 7,944,444,912,995,187/111,978,999
  6. Step 6: Final answer
    x = 70,945,846.85

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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.