Home / 780,023,940.60-1,170,035,910.90-320,292,046.20

Finding the Fourth Proportional to 780,023,940.60, 1,170,035,910.90 and 320,292,046.20

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Solution

The fourth proportional to 780,023,940.60, 1,170,035,910.90 and 320,292,046.20 is: 480,438,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,023,940.60 : 1,170,035,910.90 = 320,292,046.20 : x
  2. Step 2: Convert to fraction form
    780,023,940.60/1,170,035,910.90 = 320,292,046.20/x
  3. Step 3: Cross multiply
    780,023,940.60x = 1,170,035,910.90 × 320,292,046.20
  4. Step 4: Simplify right side
    780,023,940.60x = 374,753,196,029,641,920
  5. Step 5: Solve for x
    x = 374,753,196,029,641,920/780,023,940.60
  6. Step 6: Final answer
    x = 480,438,069.30

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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.