Home / 3,813,206.83-5,260,945.11-2,159,128.30

Finding the Fourth Proportional to 3,813,206.83, 5,260,945.11 and 2,159,128.30

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Solution

The fourth proportional to 3,813,206.83, 5,260,945.11 and 2,159,128.30 is: 2,978,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813,206.83 : 5,260,945.11 = 2,159,128.30 : x
  2. Step 2: Convert to fraction form
    3,813,206.83/5,260,945.11 = 2,159,128.30/x
  3. Step 3: Cross multiply
    3,813,206.83x = 5,260,945.11 × 2,159,128.30
  4. Step 4: Simplify right side
    3,813,206.83x = 11,359,055,471,747.61
  5. Step 5: Solve for x
    x = 11,359,055,471,747.61/3,813,206.83
  6. Step 6: Final answer
    x = 2,978,872.11

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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.