Home / 19,493,871-29,251,036.26-7,987,879.32

Finding the Fourth Proportional to 19,493,871, 29,251,036.26 and 7,987,879.32

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Solution

The fourth proportional to 19,493,871, 29,251,036.26 and 7,987,879.32 is: 11,986,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,493,871 : 29,251,036.26 = 7,987,879.32 : x
  2. Step 2: Convert to fraction form
    19,493,871/29,251,036.26 = 7,987,879.32/x
  3. Step 3: Cross multiply
    19,493,871x = 29,251,036.26 × 7,987,879.32
  4. Step 4: Simplify right side
    19,493,871x = 233,653,747,629,824.16
  5. Step 5: Solve for x
    x = 233,653,747,629,824.16/19,493,871
  6. Step 6: Final answer
    x = 11,986,010.76

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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.