Home / 8,511,380.20-12,778,880.10-5,322,734.20

Finding the Fourth Proportional to 8,511,380.20, 12,778,880.10 and 5,322,734.20

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Solution

The fourth proportional to 8,511,380.20, 12,778,880.10 and 5,322,734.20 is: 7,991,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511,380.20 : 12,778,880.10 = 5,322,734.20 : x
  2. Step 2: Convert to fraction form
    8,511,380.20/12,778,880.10 = 5,322,734.20/x
  3. Step 3: Cross multiply
    8,511,380.20x = 12,778,880.10 × 5,322,734.20
  4. Step 4: Simplify right side
    8,511,380.20x = 68,018,582,145,969.42
  5. Step 5: Solve for x
    x = 68,018,582,145,969.42/8,511,380.20
  6. Step 6: Final answer
    x = 7,991,486.76

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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.