Home / 862,448,324.32-1,190,178,687.55-491,204,899.36

Finding the Fourth Proportional to 862,448,324.32, 1,190,178,687.55 and 491,204,899.36

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Solution

The fourth proportional to 862,448,324.32, 1,190,178,687.55 and 491,204,899.36 is: 677,862,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,448,324.32 : 1,190,178,687.55 = 491,204,899.36 : x
  2. Step 2: Convert to fraction form
    862,448,324.32/1,190,178,687.55 = 491,204,899.36/x
  3. Step 3: Cross multiply
    862,448,324.32x = 1,190,178,687.55 × 491,204,899.36
  4. Step 4: Simplify right side
    862,448,324.32x = 584,621,602,432,463,744
  5. Step 5: Solve for x
    x = 584,621,602,432,463,744/862,448,324.32
  6. Step 6: Final answer
    x = 677,862,761.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.