Home / 3,179,813.76-4,388,139.84-1,821,692.16

Finding the Fourth Proportional to 3,179,813.76, 4,388,139.84 and 1,821,692.16

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Solution

The fourth proportional to 3,179,813.76, 4,388,139.84 and 1,821,692.16 is: 2,513,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,813.76 : 4,388,139.84 = 1,821,692.16 : x
  2. Step 2: Convert to fraction form
    3,179,813.76/4,388,139.84 = 1,821,692.16/x
  3. Step 3: Cross multiply
    3,179,813.76x = 4,388,139.84 × 1,821,692.16
  4. Step 4: Simplify right side
    3,179,813.76x = 7,993,839,943,511.65
  5. Step 5: Solve for x
    x = 7,993,839,943,511.65/3,179,813.76
  6. Step 6: Final answer
    x = 2,513,933.38

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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.