Home / 20,619,026.57-30,928,135.42-8,322,662.81

Finding the Fourth Proportional to 20,619,026.57, 30,928,135.42 and 8,322,662.81

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Solution

The fourth proportional to 20,619,026.57, 30,928,135.42 and 8,322,662.81 is: 12,483,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619,026.57 : 30,928,135.42 = 8,322,662.81 : x
  2. Step 2: Convert to fraction form
    20,619,026.57/30,928,135.42 = 8,322,662.81/x
  3. Step 3: Cross multiply
    20,619,026.57x = 30,928,135.42 × 8,322,662.81
  4. Step 4: Simplify right side
    20,619,026.57x = 257,404,442,499,191.41
  5. Step 5: Solve for x
    x = 257,404,442,499,191.41/20,619,026.57
  6. Step 6: Final answer
    x = 12,483,830.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.