Home / 1,179,595,998.60-1,769,393,997.90-812,263,979.40

Finding the Fourth Proportional to 1,179,595,998.60, 1,769,393,997.90 and 812,263,979.40

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Solution

The fourth proportional to 1,179,595,998.60, 1,769,393,997.90 and 812,263,979.40 is: 1,218,395,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,595,998.60 : 1,769,393,997.90 = 812,263,979.40 : x
  2. Step 2: Convert to fraction form
    1,179,595,998.60/1,769,393,997.90 = 812,263,979.40/x
  3. Step 3: Cross multiply
    1,179,595,998.60x = 1,769,393,997.90 × 812,263,979.40
  4. Step 4: Simplify right side
    1,179,595,998.60x = 1,437,215,009,860,729,344
  5. Step 5: Solve for x
    x = 1,437,215,009,860,729,344/1,179,595,998.60
  6. Step 6: Final answer
    x = 1,218,395,969.10

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Double scale
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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.