Home / 318,978,000.30-478,467,000.45-173,859,177.90

Finding the Fourth Proportional to 318,978,000.30, 478,467,000.45 and 173,859,177.90

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Solution

The fourth proportional to 318,978,000.30, 478,467,000.45 and 173,859,177.90 is: 260,788,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,978,000.30 : 478,467,000.45 = 173,859,177.90 : x
  2. Step 2: Convert to fraction form
    318,978,000.30/478,467,000.45 = 173,859,177.90/x
  3. Step 3: Cross multiply
    318,978,000.30x = 478,467,000.45 × 173,859,177.90
  4. Step 4: Simplify right side
    318,978,000.30x = 83,185,879,350,515,936
  5. Step 5: Solve for x
    x = 83,185,879,350,515,936/318,978,000.30
  6. Step 6: Final answer
    x = 260,788,766.85

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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.