Home / 8,405,086.40-12,607,629.60-6,279,322.40

Finding the Fourth Proportional to 8,405,086.40, 12,607,629.60 and 6,279,322.40

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Solution

The fourth proportional to 8,405,086.40, 12,607,629.60 and 6,279,322.40 is: 9,418,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405,086.40 : 12,607,629.60 = 6,279,322.40 : x
  2. Step 2: Convert to fraction form
    8,405,086.40/12,607,629.60 = 6,279,322.40/x
  3. Step 3: Cross multiply
    8,405,086.40x = 12,607,629.60 × 6,279,322.40
  4. Step 4: Simplify right side
    8,405,086.40x = 79,167,370,958,183.05
  5. Step 5: Solve for x
    x = 79,167,370,958,183.05/8,405,086.40
  6. Step 6: Final answer
    x = 9,418,983.60

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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.