Home / 3,179,142.06-4,387,038.75-1,821,102.54

Finding the Fourth Proportional to 3,179,142.06, 4,387,038.75 and 1,821,102.54

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Solution

The fourth proportional to 3,179,142.06, 4,387,038.75 and 1,821,102.54 is: 2,513,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,142.06 : 4,387,038.75 = 1,821,102.54 : x
  2. Step 2: Convert to fraction form
    3,179,142.06/4,387,038.75 = 1,821,102.54/x
  3. Step 3: Cross multiply
    3,179,142.06x = 4,387,038.75 × 1,821,102.54
  4. Step 4: Simplify right side
    3,179,142.06x = 7,989,247,410,703.43
  5. Step 5: Solve for x
    x = 7,989,247,410,703.43/3,179,142.06
  6. Step 6: Final answer
    x = 2,513,019.95

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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.