Home / 3,903,768.86-5,387,369.28-2,161,438.11

Finding the Fourth Proportional to 3,903,768.86, 5,387,369.28 and 2,161,438.11

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Solution

The fourth proportional to 3,903,768.86, 5,387,369.28 and 2,161,438.11 is: 2,982,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903,768.86 : 5,387,369.28 = 2,161,438.11 : x
  2. Step 2: Convert to fraction form
    3,903,768.86/5,387,369.28 = 2,161,438.11/x
  3. Step 3: Cross multiply
    3,903,768.86x = 5,387,369.28 × 2,161,438.11
  4. Step 4: Simplify right side
    3,903,768.86x = 11,644,465,274,435.26
  5. Step 5: Solve for x
    x = 11,644,465,274,435.26/3,903,768.86
  6. Step 6: Final answer
    x = 2,982,877.75

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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.