Home / 20,774,219.44-31,161,963.98-7,127,174.38

Finding the Fourth Proportional to 20,774,219.44, 31,161,963.98 and 7,127,174.38

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Solution

The fourth proportional to 20,774,219.44, 31,161,963.98 and 7,127,174.38 is: 10,690,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,219.44 : 31,161,963.98 = 7,127,174.38 : x
  2. Step 2: Convert to fraction form
    20,774,219.44/31,161,963.98 = 7,127,174.38/x
  3. Step 3: Cross multiply
    20,774,219.44x = 31,161,963.98 × 7,127,174.38
  4. Step 4: Simplify right side
    20,774,219.44x = 222,096,751,308,738.84
  5. Step 5: Solve for x
    x = 222,096,751,308,738.84/20,774,219.44
  6. Step 6: Final answer
    x = 10,690,979.36

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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.