Home / 212,910,272.20-319,365,408.30-76,600,102.60

Finding the Fourth Proportional to 212,910,272.20, 319,365,408.30 and 76,600,102.60

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Solution

The fourth proportional to 212,910,272.20, 319,365,408.30 and 76,600,102.60 is: 114,900,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,910,272.20 : 319,365,408.30 = 76,600,102.60 : x
  2. Step 2: Convert to fraction form
    212,910,272.20/319,365,408.30 = 76,600,102.60/x
  3. Step 3: Cross multiply
    212,910,272.20x = 319,365,408.30 × 76,600,102.60
  4. Step 4: Simplify right side
    212,910,272.20x = 24,463,423,042,670,892
  5. Step 5: Solve for x
    x = 24,463,423,042,670,892/212,910,272.20
  6. Step 6: Final answer
    x = 114,900,153.90

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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.