Home / 8,212,187.20-12,317,114.40-2,821,086.40

Finding the Fourth Proportional to 8,212,187.20, 12,317,114.40 and 2,821,086.40

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Solution

The fourth proportional to 8,212,187.20, 12,317,114.40 and 2,821,086.40 is: 4,231,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212,187.20 : 12,317,114.40 = 2,821,086.40 : x
  2. Step 2: Convert to fraction form
    8,212,187.20/12,317,114.40 = 2,821,086.40/x
  3. Step 3: Cross multiply
    8,212,187.20x = 12,317,114.40 × 2,821,086.40
  4. Step 4: Simplify right side
    8,212,187.20x = 34,747,643,921,084.16
  5. Step 5: Solve for x
    x = 34,747,643,921,084.16/8,212,187.20
  6. Step 6: Final answer
    x = 4,231,228.91

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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.