Home / 212,652,000.20-318,978,000.30-115,906,118.60

Finding the Fourth Proportional to 212,652,000.20, 318,978,000.30 and 115,906,118.60

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Solution

The fourth proportional to 212,652,000.20, 318,978,000.30 and 115,906,118.60 is: 173,859,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,652,000.20 : 318,978,000.30 = 115,906,118.60 : x
  2. Step 2: Convert to fraction form
    212,652,000.20/318,978,000.30 = 115,906,118.60/x
  3. Step 3: Cross multiply
    212,652,000.20x = 318,978,000.30 × 115,906,118.60
  4. Step 4: Simplify right side
    212,652,000.20x = 36,971,501,933,562,632
  5. Step 5: Solve for x
    x = 36,971,501,933,562,632/212,652,000.20
  6. Step 6: Final answer
    x = 173,859,177.90

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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.