Home / 3,890,182.05-5,368,457.39-2,171,302.11

Finding the Fourth Proportional to 3,890,182.05, 5,368,457.39 and 2,171,302.11

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Solution

The fourth proportional to 3,890,182.05, 5,368,457.39 and 2,171,302.11 is: 2,996,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,182.05 : 5,368,457.39 = 2,171,302.11 : x
  2. Step 2: Convert to fraction form
    3,890,182.05/5,368,457.39 = 2,171,302.11/x
  3. Step 3: Cross multiply
    3,890,182.05x = 5,368,457.39 × 2,171,302.11
  4. Step 4: Simplify right side
    3,890,182.05x = 11,656,542,847,495.58
  5. Step 5: Solve for x
    x = 11,656,542,847,495.58/3,890,182.05
  6. Step 6: Final answer
    x = 2,996,400.35

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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.