Home / 3,405,412.78-5,111,443.45-2,812,415.02

Finding the Fourth Proportional to 3,405,412.78, 5,111,443.45 and 2,812,415.02

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Solution

The fourth proportional to 3,405,412.78, 5,111,443.45 and 2,812,415.02 is: 4,221,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,412.78 : 5,111,443.45 = 2,812,415.02 : x
  2. Step 2: Convert to fraction form
    3,405,412.78/5,111,443.45 = 2,812,415.02/x
  3. Step 3: Cross multiply
    3,405,412.78x = 5,111,443.45 × 2,812,415.02
  4. Step 4: Simplify right side
    3,405,412.78x = 14,375,500,332,660.62
  5. Step 5: Solve for x
    x = 14,375,500,332,660.62/3,405,412.78
  6. Step 6: Final answer
    x = 4,221,367.94

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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.