Home / 3,472,209.40-5,200,019.70-2,128,516.60

Finding the Fourth Proportional to 3,472,209.40, 5,200,019.70 and 2,128,516.60

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Solution

The fourth proportional to 3,472,209.40, 5,200,019.70 and 2,128,516.60 is: 3,187,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472,209.40 : 5,200,019.70 = 2,128,516.60 : x
  2. Step 2: Convert to fraction form
    3,472,209.40/5,200,019.70 = 2,128,516.60/x
  3. Step 3: Cross multiply
    3,472,209.40x = 5,200,019.70 × 2,128,516.60
  4. Step 4: Simplify right side
    3,472,209.40x = 11,068,328,251,777.02
  5. Step 5: Solve for x
    x = 11,068,328,251,777.02/3,472,209.40
  6. Step 6: Final answer
    x = 3,187,690.31

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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.