Home / 1,399,666,535.78-2,099,485,424.14-809,080,991.21

Finding the Fourth Proportional to 1,399,666,535.78, 2,099,485,424.14 and 809,080,991.21

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Solution

The fourth proportional to 1,399,666,535.78, 2,099,485,424.14 and 809,080,991.21 is: 1,213,613,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,666,535.78 : 2,099,485,424.14 = 809,080,991.21 : x
  2. Step 2: Convert to fraction form
    1,399,666,535.78/2,099,485,424.14 = 809,080,991.21/x
  3. Step 3: Cross multiply
    1,399,666,535.78x = 2,099,485,424.14 × 809,080,991.21
  4. Step 4: Simplify right side
    1,399,666,535.78x = 1,698,653,747,997,325,568
  5. Step 5: Solve for x
    x = 1,698,653,747,997,325,568/1,399,666,535.78
  6. Step 6: Final answer
    x = 1,213,613,174.70

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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.