Home / 28,728,818.45-39,635,409.66-22,115,429.54

Finding the Fourth Proportional to 28,728,818.45, 39,635,409.66 and 22,115,429.54

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Solution

The fourth proportional to 28,728,818.45, 39,635,409.66 and 22,115,429.54 is: 30,511,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,818.45 : 39,635,409.66 = 22,115,429.54 : x
  2. Step 2: Convert to fraction form
    28,728,818.45/39,635,409.66 = 22,115,429.54/x
  3. Step 3: Cross multiply
    28,728,818.45x = 39,635,409.66 × 22,115,429.54
  4. Step 4: Simplify right side
    28,728,818.45x = 876,554,109,492,288.25
  5. Step 5: Solve for x
    x = 876,554,109,492,288.25/28,728,818.45
  6. Step 6: Final answer
    x = 30,511,317.79

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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.