Home / 5,420,696.49-8,131,208.76-1,377,185.13

Finding the Fourth Proportional to 5,420,696.49, 8,131,208.76 and 1,377,185.13

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Solution

The fourth proportional to 5,420,696.49, 8,131,208.76 and 1,377,185.13 is: 2,065,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420,696.49 : 8,131,208.76 = 1,377,185.13 : x
  2. Step 2: Convert to fraction form
    5,420,696.49/8,131,208.76 = 1,377,185.13/x
  3. Step 3: Cross multiply
    5,420,696.49x = 8,131,208.76 × 1,377,185.13
  4. Step 4: Simplify right side
    5,420,696.49x = 11,198,179,793,197.74
  5. Step 5: Solve for x
    x = 11,198,179,793,197.74/5,420,696.49
  6. Step 6: Final answer
    x = 2,065,819.37

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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.