Home / 2,128,211.20-3,192,705.60-866,166.40

Finding the Fourth Proportional to 2,128,211.20, 3,192,705.60 and 866,166.40

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Solution

The fourth proportional to 2,128,211.20, 3,192,705.60 and 866,166.40 is: 1,299,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,211.20 : 3,192,705.60 = 866,166.40 : x
  2. Step 2: Convert to fraction form
    2,128,211.20/3,192,705.60 = 866,166.40/x
  3. Step 3: Cross multiply
    2,128,211.20x = 3,192,705.60 × 866,166.40
  4. Step 4: Simplify right side
    2,128,211.20x = 2,765,414,315,811.84
  5. Step 5: Solve for x
    x = 2,765,414,315,811.84/2,128,211.20
  6. Step 6: Final answer
    x = 1,299,407.84

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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.