Home / 6,409,853.20-9,621,000.60-3,218,582.80

Finding the Fourth Proportional to 6,409,853.20, 9,621,000.60 and 3,218,582.80

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Solution

The fourth proportional to 6,409,853.20, 9,621,000.60 and 3,218,582.80 is: 4,830,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,853.20 : 9,621,000.60 = 3,218,582.80 : x
  2. Step 2: Convert to fraction form
    6,409,853.20/9,621,000.60 = 3,218,582.80/x
  3. Step 3: Cross multiply
    6,409,853.20x = 9,621,000.60 × 3,218,582.80
  4. Step 4: Simplify right side
    6,409,853.20x = 30,965,987,049,949.68
  5. Step 5: Solve for x
    x = 30,965,987,049,949.68/6,409,853.20
  6. Step 6: Final answer
    x = 4,830,997.85

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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.