Home / 3,972,412-5,481,928.56-2,161,588.96

Finding the Fourth Proportional to 3,972,412, 5,481,928.56 and 2,161,588.96

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Solution

The fourth proportional to 3,972,412, 5,481,928.56 and 2,161,588.96 is: 2,982,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972,412 : 5,481,928.56 = 2,161,588.96 : x
  2. Step 2: Convert to fraction form
    3,972,412/5,481,928.56 = 2,161,588.96/x
  3. Step 3: Cross multiply
    3,972,412x = 5,481,928.56 × 2,161,588.96
  4. Step 4: Simplify right side
    3,972,412x = 11,849,676,254,804.70
  5. Step 5: Solve for x
    x = 11,849,676,254,804.70/3,972,412
  6. Step 6: Final answer
    x = 2,982,992.76

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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.