Home / 3,179,036.20-4,387,185.32-1,821,171.64

Finding the Fourth Proportional to 3,179,036.20, 4,387,185.32 and 1,821,171.64

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Solution

The fourth proportional to 3,179,036.20, 4,387,185.32 and 1,821,171.64 is: 2,513,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,036.20 : 4,387,185.32 = 1,821,171.64 : x
  2. Step 2: Convert to fraction form
    3,179,036.20/4,387,185.32 = 1,821,171.64/x
  3. Step 3: Cross multiply
    3,179,036.20x = 4,387,185.32 × 1,821,171.64
  4. Step 4: Simplify right side
    3,179,036.20x = 7,989,817,484,208.33
  5. Step 5: Solve for x
    x = 7,989,817,484,208.33/3,179,036.20
  6. Step 6: Final answer
    x = 2,513,282.95

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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.