Home / 3,939,859.80-5,909,789.70-2,670,816.60

Finding the Fourth Proportional to 3,939,859.80, 5,909,789.70 and 2,670,816.60

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Solution

The fourth proportional to 3,939,859.80, 5,909,789.70 and 2,670,816.60 is: 4,006,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,859.80 : 5,909,789.70 = 2,670,816.60 : x
  2. Step 2: Convert to fraction form
    3,939,859.80/5,909,789.70 = 2,670,816.60/x
  3. Step 3: Cross multiply
    3,939,859.80x = 5,909,789.70 × 2,670,816.60
  4. Step 4: Simplify right side
    3,939,859.80x = 15,783,964,433,269.02
  5. Step 5: Solve for x
    x = 15,783,964,433,269.02/3,939,859.80
  6. Step 6: Final answer
    x = 4,006,224.90

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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.