Home / 30,651,415.12-45,982,789.43-8,790,879.16

Finding the Fourth Proportional to 30,651,415.12, 45,982,789.43 and 8,790,879.16

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Solution

The fourth proportional to 30,651,415.12, 45,982,789.43 and 8,790,879.16 is: 13,187,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651,415.12 : 45,982,789.43 = 8,790,879.16 : x
  2. Step 2: Convert to fraction form
    30,651,415.12/45,982,789.43 = 8,790,879.16/x
  3. Step 3: Cross multiply
    30,651,415.12x = 45,982,789.43 × 8,790,879.16
  4. Step 4: Simplify right side
    30,651,415.12x = 404,229,145,044,986.88
  5. Step 5: Solve for x
    x = 404,229,145,044,986.88/30,651,415.12
  6. Step 6: Final answer
    x = 13,187,943.97

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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.