Home / 8,479,115.64-12,718,682.10-3,430,469.88

Finding the Fourth Proportional to 8,479,115.64, 12,718,682.10 and 3,430,469.88

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Solution

The fourth proportional to 8,479,115.64, 12,718,682.10 and 3,430,469.88 is: 5,145,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479,115.64 : 12,718,682.10 = 3,430,469.88 : x
  2. Step 2: Convert to fraction form
    8,479,115.64/12,718,682.10 = 3,430,469.88/x
  3. Step 3: Cross multiply
    8,479,115.64x = 12,718,682.10 × 3,430,469.88
  4. Step 4: Simplify right side
    8,479,115.64x = 43,631,055,857,345.15
  5. Step 5: Solve for x
    x = 43,631,055,857,345.15/8,479,115.64
  6. Step 6: Final answer
    x = 5,145,708.32

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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.