Home / 20,509,621.43-28,303,207.58-11,342,067.35

Finding the Fourth Proportional to 20,509,621.43, 28,303,207.58 and 11,342,067.35

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Solution

The fourth proportional to 20,509,621.43, 28,303,207.58 and 11,342,067.35 is: 15,652,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,621.43 : 28,303,207.58 = 11,342,067.35 : x
  2. Step 2: Convert to fraction form
    20,509,621.43/28,303,207.58 = 11,342,067.35/x
  3. Step 3: Cross multiply
    20,509,621.43x = 28,303,207.58 × 11,342,067.35
  4. Step 4: Simplify right side
    20,509,621.43x = 321,016,886,480,229.69
  5. Step 5: Solve for x
    x = 321,016,886,480,229.69/20,509,621.43
  6. Step 6: Final answer
    x = 15,652,014.23

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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.