Home / 6,789,119.20-9,368,971.20-3,889,448.80

Finding the Fourth Proportional to 6,789,119.20, 9,368,971.20 and 3,889,448.80

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Solution

The fourth proportional to 6,789,119.20, 9,368,971.20 and 3,889,448.80 is: 5,367,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789,119.20 : 9,368,971.20 = 3,889,448.80 : x
  2. Step 2: Convert to fraction form
    6,789,119.20/9,368,971.20 = 3,889,448.80/x
  3. Step 3: Cross multiply
    6,789,119.20x = 9,368,971.20 × 3,889,448.80
  4. Step 4: Simplify right side
    6,789,119.20x = 36,440,133,791,074.55
  5. Step 5: Solve for x
    x = 36,440,133,791,074.55/6,789,119.20
  6. Step 6: Final answer
    x = 5,367,431.73

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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.