Home / 627,480,076.80-941,220,115.20-320,670,220.80

Finding the Fourth Proportional to 627,480,076.80, 941,220,115.20 and 320,670,220.80

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Solution

The fourth proportional to 627,480,076.80, 941,220,115.20 and 320,670,220.80 is: 481,005,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,480,076.80 : 941,220,115.20 = 320,670,220.80 : x
  2. Step 2: Convert to fraction form
    627,480,076.80/941,220,115.20 = 320,670,220.80/x
  3. Step 3: Cross multiply
    627,480,076.80x = 941,220,115.20 × 320,670,220.80
  4. Step 4: Simplify right side
    627,480,076.80x = 301,821,262,162,585,472
  5. Step 5: Solve for x
    x = 301,821,262,162,585,472/627,480,076.80
  6. Step 6: Final answer
    x = 481,005,331.20

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Double scale
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Similar ratio
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1.5x scale

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.