Home / 2,139,072.39-3,206,448.30-1,340,913.38

Finding the Fourth Proportional to 2,139,072.39, 3,206,448.30 and 1,340,913.38

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Solution

The fourth proportional to 2,139,072.39, 3,206,448.30 and 1,340,913.38 is: 2,010,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,072.39 : 3,206,448.30 = 1,340,913.38 : x
  2. Step 2: Convert to fraction form
    2,139,072.39/3,206,448.30 = 1,340,913.38/x
  3. Step 3: Cross multiply
    2,139,072.39x = 3,206,448.30 × 1,340,913.38
  4. Step 4: Simplify right side
    2,139,072.39x = 4,299,569,411,716.01
  5. Step 5: Solve for x
    x = 4,299,569,411,716.01/2,139,072.39
  6. Step 6: Final answer
    x = 2,010,015.85

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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.