Home / 39,960,863.41-55,145,990.97-21,626,148.91

Finding the Fourth Proportional to 39,960,863.41, 55,145,990.97 and 21,626,148.91

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Solution

The fourth proportional to 39,960,863.41, 55,145,990.97 and 21,626,148.91 is: 29,844,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,863.41 : 55,145,990.97 = 21,626,148.91 : x
  2. Step 2: Convert to fraction form
    39,960,863.41/55,145,990.97 = 21,626,148.91/x
  3. Step 3: Cross multiply
    39,960,863.41x = 55,145,990.97 × 21,626,148.91
  4. Step 4: Simplify right side
    39,960,863.41x = 1,192,595,412,368,870.25
  5. Step 5: Solve for x
    x = 1,192,595,412,368,870.25/39,960,863.41
  6. Step 6: Final answer
    x = 29,844,085.20

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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.