Home / 8,270,905.40-12,408,039.60-2,879,976.20

Finding the Fourth Proportional to 8,270,905.40, 12,408,039.60 and 2,879,976.20

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Solution

The fourth proportional to 8,270,905.40, 12,408,039.60 and 2,879,976.20 is: 4,320,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270,905.40 : 12,408,039.60 = 2,879,976.20 : x
  2. Step 2: Convert to fraction form
    8,270,905.40/12,408,039.60 = 2,879,976.20/x
  3. Step 3: Cross multiply
    8,270,905.40x = 12,408,039.60 × 2,879,976.20
  4. Step 4: Simplify right side
    8,270,905.40x = 35,734,858,736,657.52
  5. Step 5: Solve for x
    x = 35,734,858,736,657.52/8,270,905.40
  6. Step 6: Final answer
    x = 4,320,549.81

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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.