Home / 3,853,761-5,317,940.78-2,111,428

Finding the Fourth Proportional to 3,853,761, 5,317,940.78 and 2,111,428

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Solution

The fourth proportional to 3,853,761, 5,317,940.78 and 2,111,428 is: 2,913,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853,761 : 5,317,940.78 = 2,111,428 : x
  2. Step 2: Convert to fraction form
    3,853,761/5,317,940.78 = 2,111,428/x
  3. Step 3: Cross multiply
    3,853,761x = 5,317,940.78 × 2,111,428
  4. Step 4: Simplify right side
    3,853,761x = 11,228,449,065,233.84
  5. Step 5: Solve for x
    x = 11,228,449,065,233.84/3,853,761
  6. Step 6: Final answer
    x = 2,913,634.00

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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.