Home / 21,079,755.09-31,606,086.22-8,792,195.62

Finding the Fourth Proportional to 21,079,755.09, 31,606,086.22 and 8,792,195.62

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Solution

The fourth proportional to 21,079,755.09, 31,606,086.22 and 8,792,195.62 is: 13,182,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079,755.09 : 31,606,086.22 = 8,792,195.62 : x
  2. Step 2: Convert to fraction form
    21,079,755.09/31,606,086.22 = 8,792,195.62/x
  3. Step 3: Cross multiply
    21,079,755.09x = 31,606,086.22 × 8,792,195.62
  4. Step 4: Simplify right side
    21,079,755.09x = 277,886,892,828,826.31
  5. Step 5: Solve for x
    x = 277,886,892,828,826.31/21,079,755.09
  6. Step 6: Final answer
    x = 13,182,643.33

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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.