Home / 5,213,390.40-7,819,696.80-2,179,972.80

Finding the Fourth Proportional to 5,213,390.40, 7,819,696.80 and 2,179,972.80

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Solution

The fourth proportional to 5,213,390.40, 7,819,696.80 and 2,179,972.80 is: 3,269,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213,390.40 : 7,819,696.80 = 2,179,972.80 : x
  2. Step 2: Convert to fraction form
    5,213,390.40/7,819,696.80 = 2,179,972.80/x
  3. Step 3: Cross multiply
    5,213,390.40x = 7,819,696.80 × 2,179,972.80
  4. Step 4: Simplify right side
    5,213,390.40x = 17,046,726,328,247.04
  5. Step 5: Solve for x
    x = 17,046,726,328,247.04/5,213,390.40
  6. Step 6: Final answer
    x = 3,269,796.62

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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.