Home / 13,279,803.90-18,325,880.55-8,122,786.62

Finding the Fourth Proportional to 13,279,803.90, 18,325,880.55 and 8,122,786.62

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Solution

The fourth proportional to 13,279,803.90, 18,325,880.55 and 8,122,786.62 is: 11,209,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279,803.90 : 18,325,880.55 = 8,122,786.62 : x
  2. Step 2: Convert to fraction form
    13,279,803.90/18,325,880.55 = 8,122,786.62/x
  3. Step 3: Cross multiply
    13,279,803.90x = 18,325,880.55 × 8,122,786.62
  4. Step 4: Simplify right side
    13,279,803.90x = 148,857,217,331,258.25
  5. Step 5: Solve for x
    x = 148,857,217,331,258.25/13,279,803.90
  6. Step 6: Final answer
    x = 11,209,293.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.