Home / 18,642,410.79-27,961,890.82-8,792,215.61

Finding the Fourth Proportional to 18,642,410.79, 27,961,890.82 and 8,792,215.61

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Solution

The fourth proportional to 18,642,410.79, 27,961,890.82 and 8,792,215.61 is: 13,187,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642,410.79 : 27,961,890.82 = 8,792,215.61 : x
  2. Step 2: Convert to fraction form
    18,642,410.79/27,961,890.82 = 8,792,215.61/x
  3. Step 3: Cross multiply
    18,642,410.79x = 27,961,890.82 × 8,792,215.61
  4. Step 4: Simplify right side
    18,642,410.79x = 245,846,972,895,786.81
  5. Step 5: Solve for x
    x = 245,846,972,895,786.81/18,642,410.79
  6. Step 6: Final answer
    x = 13,187,509.69

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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.