Home / 3,891,204.87-5,369,915.81-2,148,991.76

Finding the Fourth Proportional to 3,891,204.87, 5,369,915.81 and 2,148,991.76

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Solution

The fourth proportional to 3,891,204.87, 5,369,915.81 and 2,148,991.76 is: 2,965,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,204.87 : 5,369,915.81 = 2,148,991.76 : x
  2. Step 2: Convert to fraction form
    3,891,204.87/5,369,915.81 = 2,148,991.76/x
  3. Step 3: Cross multiply
    3,891,204.87x = 5,369,915.81 × 2,148,991.76
  4. Step 4: Simplify right side
    3,891,204.87x = 11,539,904,827,583.72
  5. Step 5: Solve for x
    x = 11,539,904,827,583.72/3,891,204.87
  6. Step 6: Final answer
    x = 2,965,637.95

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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.