Home / 87,795,271-131,664,993.90-82,063,665.64

Finding the Fourth Proportional to 87,795,271, 131,664,993.90 and 82,063,665.64

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Solution

The fourth proportional to 87,795,271, 131,664,993.90 and 82,063,665.64 is: 123,069,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795,271 : 131,664,993.90 = 82,063,665.64 : x
  2. Step 2: Convert to fraction form
    87,795,271/131,664,993.90 = 82,063,665.64/x
  3. Step 3: Cross multiply
    87,795,271x = 131,664,993.90 × 82,063,665.64
  4. Step 4: Simplify right side
    87,795,271x = 10,804,912,035,902,240
  5. Step 5: Solve for x
    x = 10,804,912,035,902,240/87,795,271
  6. Step 6: Final answer
    x = 123,069,408.10

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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.