Home / 320,489,734.60-480,734,601.90-317,088,512.20

Finding the Fourth Proportional to 320,489,734.60, 480,734,601.90 and 317,088,512.20

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Solution

The fourth proportional to 320,489,734.60, 480,734,601.90 and 317,088,512.20 is: 475,632,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,489,734.60 : 480,734,601.90 = 317,088,512.20 : x
  2. Step 2: Convert to fraction form
    320,489,734.60/480,734,601.90 = 317,088,512.20/x
  3. Step 3: Cross multiply
    320,489,734.60x = 480,734,601.90 × 317,088,512.20
  4. Step 4: Simplify right side
    320,489,734.60x = 152,435,419,679,530,272
  5. Step 5: Solve for x
    x = 152,435,419,679,530,272/320,489,734.60
  6. Step 6: Final answer
    x = 475,632,768.30

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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.