Home / 320,306,331.42-480,286,630.44-145,333,884.69

Finding the Fourth Proportional to 320,306,331.42, 480,286,630.44 and 145,333,884.69

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Solution

The fourth proportional to 320,306,331.42, 480,286,630.44 and 145,333,884.69 is: 217,922,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,306,331.42 : 480,286,630.44 = 145,333,884.69 : x
  2. Step 2: Convert to fraction form
    320,306,331.42/480,286,630.44 = 145,333,884.69/x
  3. Step 3: Cross multiply
    320,306,331.42x = 480,286,630.44 × 145,333,884.69
  4. Step 4: Simplify right side
    320,306,331.42x = 69,801,921,766,515,600
  5. Step 5: Solve for x
    x = 69,801,921,766,515,600/320,306,331.42
  6. Step 6: Final answer
    x = 217,922,391.53

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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.