Home / 87,111,319.19-120,239,006.07-56,940,198.92

Finding the Fourth Proportional to 87,111,319.19, 120,239,006.07 and 56,940,198.92

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Solution

The fourth proportional to 87,111,319.19, 120,239,006.07 and 56,940,198.92 is: 78,594,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111,319.19 : 120,239,006.07 = 56,940,198.92 : x
  2. Step 2: Convert to fraction form
    87,111,319.19/120,239,006.07 = 56,940,198.92/x
  3. Step 3: Cross multiply
    87,111,319.19x = 120,239,006.07 × 56,940,198.92
  4. Step 4: Simplify right side
    87,111,319.19x = 6,846,432,923,632,115
  5. Step 5: Solve for x
    x = 6,846,432,923,632,115/87,111,319.19
  6. Step 6: Final answer
    x = 78,594,067.77

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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.