Home / 15,922,621.35-21,971,971.49-8,858,458.26

Finding the Fourth Proportional to 15,922,621.35, 21,971,971.49 and 8,858,458.26

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Solution

The fourth proportional to 15,922,621.35, 21,971,971.49 and 8,858,458.26 is: 12,223,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922,621.35 : 21,971,971.49 = 8,858,458.26 : x
  2. Step 2: Convert to fraction form
    15,922,621.35/21,971,971.49 = 8,858,458.26/x
  3. Step 3: Cross multiply
    15,922,621.35x = 21,971,971.49 × 8,858,458.26
  4. Step 4: Simplify right side
    15,922,621.35x = 194,637,792,289,782.72
  5. Step 5: Solve for x
    x = 194,637,792,289,782.72/15,922,621.35
  6. Step 6: Final answer
    x = 12,223,979.21

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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.