Home / 3,940,282.40-5,915,089.20-3,912,288.80

Finding the Fourth Proportional to 3,940,282.40, 5,915,089.20 and 3,912,288.80

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Solution

The fourth proportional to 3,940,282.40, 5,915,089.20 and 3,912,288.80 is: 5,873,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,282.40 : 5,915,089.20 = 3,912,288.80 : x
  2. Step 2: Convert to fraction form
    3,940,282.40/5,915,089.20 = 3,912,288.80/x
  3. Step 3: Cross multiply
    3,940,282.40x = 5,915,089.20 × 3,912,288.80
  4. Step 4: Simplify right side
    3,940,282.40x = 23,141,537,228,160.96
  5. Step 5: Solve for x
    x = 23,141,537,228,160.96/3,940,282.40
  6. Step 6: Final answer
    x = 5,873,065.65

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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.