Home / 15,015,979.54-20,722,214.93-8,821,287.34

Finding the Fourth Proportional to 15,015,979.54, 20,722,214.93 and 8,821,287.34

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Solution

The fourth proportional to 15,015,979.54, 20,722,214.93 and 8,821,287.34 is: 12,173,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015,979.54 : 20,722,214.93 = 8,821,287.34 : x
  2. Step 2: Convert to fraction form
    15,015,979.54/20,722,214.93 = 8,821,287.34/x
  3. Step 3: Cross multiply
    15,015,979.54x = 20,722,214.93 × 8,821,287.34
  4. Step 4: Simplify right side
    15,015,979.54x = 182,796,612,218,767.97
  5. Step 5: Solve for x
    x = 182,796,612,218,767.97/15,015,979.54
  6. Step 6: Final answer
    x = 12,173,472.38

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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.