Home / 20,690,198.20-31,035,297.30-7,225,276.60

Finding the Fourth Proportional to 20,690,198.20, 31,035,297.30 and 7,225,276.60

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Solution

The fourth proportional to 20,690,198.20, 31,035,297.30 and 7,225,276.60 is: 10,837,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,198.20 : 31,035,297.30 = 7,225,276.60 : x
  2. Step 2: Convert to fraction form
    20,690,198.20/31,035,297.30 = 7,225,276.60/x
  3. Step 3: Cross multiply
    20,690,198.20x = 31,035,297.30 × 7,225,276.60
  4. Step 4: Simplify right side
    20,690,198.20x = 224,238,607,355,733.19
  5. Step 5: Solve for x
    x = 224,238,607,355,733.19/20,690,198.20
  6. Step 6: Final answer
    x = 10,837,914.90

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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.