Home / 3,991,881.92-5,987,736.95-1,113,172.11

Finding the Fourth Proportional to 3,991,881.92, 5,987,736.95 and 1,113,172.11

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Solution

The fourth proportional to 3,991,881.92, 5,987,736.95 and 1,113,172.11 is: 1,669,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,881.92 : 5,987,736.95 = 1,113,172.11 : x
  2. Step 2: Convert to fraction form
    3,991,881.92/5,987,736.95 = 1,113,172.11/x
  3. Step 3: Cross multiply
    3,991,881.92x = 5,987,736.95 × 1,113,172.11
  4. Step 4: Simplify right side
    3,991,881.92x = 6,665,381,769,190.61
  5. Step 5: Solve for x
    x = 6,665,381,769,190.61/3,991,881.92
  6. Step 6: Final answer
    x = 1,669,734.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.