Home / 3,621,912.40-5,432,868.60-2,187,021.70

Finding the Fourth Proportional to 3,621,912.40, 5,432,868.60 and 2,187,021.70

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Solution

The fourth proportional to 3,621,912.40, 5,432,868.60 and 2,187,021.70 is: 3,280,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621,912.40 : 5,432,868.60 = 2,187,021.70 : x
  2. Step 2: Convert to fraction form
    3,621,912.40/5,432,868.60 = 2,187,021.70/x
  3. Step 3: Cross multiply
    3,621,912.40x = 5,432,868.60 × 2,187,021.70
  4. Step 4: Simplify right side
    3,621,912.40x = 11,881,801,521,448.62
  5. Step 5: Solve for x
    x = 11,881,801,521,448.62/3,621,912.40
  6. Step 6: Final answer
    x = 3,280,532.55

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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.