Home / 135,145,855.15-186,515,180.65-82,226,319.72

Finding the Fourth Proportional to 135,145,855.15, 186,515,180.65 and 82,226,319.72

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Solution

The fourth proportional to 135,145,855.15, 186,515,180.65 and 82,226,319.72 is: 113,480,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,145,855.15 : 186,515,180.65 = 82,226,319.72 : x
  2. Step 2: Convert to fraction form
    135,145,855.15/186,515,180.65 = 82,226,319.72/x
  3. Step 3: Cross multiply
    135,145,855.15x = 186,515,180.65 × 82,226,319.72
  4. Step 4: Simplify right side
    135,145,855.15x = 15,336,456,876,163,810
  5. Step 5: Solve for x
    x = 15,336,456,876,163,810/135,145,855.15
  6. Step 6: Final answer
    x = 113,480,778.67

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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.