Home / 1,993,086,097.20-2,989,629,145.80-612,721,243.80

Finding the Fourth Proportional to 1,993,086,097.20, 2,989,629,145.80 and 612,721,243.80

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Solution

The fourth proportional to 1,993,086,097.20, 2,989,629,145.80 and 612,721,243.80 is: 919,081,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,086,097.20 : 2,989,629,145.80 = 612,721,243.80 : x
  2. Step 2: Convert to fraction form
    1,993,086,097.20/2,989,629,145.80 = 612,721,243.80/x
  3. Step 3: Cross multiply
    1,993,086,097.20x = 2,989,629,145.80 × 612,721,243.80
  4. Step 4: Simplify right side
    1,993,086,097.20x = 1,831,809,288,715,307,520
  5. Step 5: Solve for x
    x = 1,831,809,288,715,307,520/1,993,086,097.20
  6. Step 6: Final answer
    x = 919,081,865.70

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Double scale
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Similar ratio
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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.