Home / 78,052,154.22-117,085,455.62-25,530,123.90

Finding the Fourth Proportional to 78,052,154.22, 117,085,455.62 and 25,530,123.90

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Solution

The fourth proportional to 78,052,154.22, 117,085,455.62 and 25,530,123.90 is: 38,297,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052,154.22 : 117,085,455.62 = 25,530,123.90 : x
  2. Step 2: Convert to fraction form
    78,052,154.22/117,085,455.62 = 25,530,123.90/x
  3. Step 3: Cross multiply
    78,052,154.22x = 117,085,455.62 × 25,530,123.90
  4. Step 4: Simplify right side
    78,052,154.22x = 2,989,206,188,738,900.50
  5. Step 5: Solve for x
    x = 2,989,206,188,738,900.50/78,052,154.22
  6. Step 6: Final answer
    x = 38,297,548.85

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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.