Home / 5,212,118.88-7,812,721.68-2,181,221.28

Finding the Fourth Proportional to 5,212,118.88, 7,812,721.68 and 2,181,221.28

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Solution

The fourth proportional to 5,212,118.88, 7,812,721.68 and 2,181,221.28 is: 3,269,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212,118.88 : 7,812,721.68 = 2,181,221.28 : x
  2. Step 2: Convert to fraction form
    5,212,118.88/7,812,721.68 = 2,181,221.28/x
  3. Step 3: Cross multiply
    5,212,118.88x = 7,812,721.68 × 2,181,221.28
  4. Step 4: Simplify right side
    5,212,118.88x = 17,041,274,783,133.35
  5. Step 5: Solve for x
    x = 17,041,274,783,133.35/5,212,118.88
  6. Step 6: Final answer
    x = 3,269,548.37

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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.