Home / 72,612,000.60-108,918,000.90-45,738,144.60

Finding the Fourth Proportional to 72,612,000.60, 108,918,000.90 and 45,738,144.60

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Solution

The fourth proportional to 72,612,000.60, 108,918,000.90 and 45,738,144.60 is: 68,607,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612,000.60 : 108,918,000.90 = 45,738,144.60 : x
  2. Step 2: Convert to fraction form
    72,612,000.60/108,918,000.90 = 45,738,144.60/x
  3. Step 3: Cross multiply
    72,612,000.60x = 108,918,000.90 × 45,738,144.60
  4. Step 4: Simplify right side
    72,612,000.60x = 4,981,707,274,707,131
  5. Step 5: Solve for x
    x = 4,981,707,274,707,131/72,612,000.60
  6. Step 6: Final answer
    x = 68,607,216.90

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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.