Home / 20,704,816.20-31,056,932.70-9,345,246.60

Finding the Fourth Proportional to 20,704,816.20, 31,056,932.70 and 9,345,246.60

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Solution

The fourth proportional to 20,704,816.20, 31,056,932.70 and 9,345,246.60 is: 14,017,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,816.20 : 31,056,932.70 = 9,345,246.60 : x
  2. Step 2: Convert to fraction form
    20,704,816.20/31,056,932.70 = 9,345,246.60/x
  3. Step 3: Cross multiply
    20,704,816.20x = 31,056,932.70 × 9,345,246.60
  4. Step 4: Simplify right side
    20,704,816.20x = 290,234,694,721,103.81
  5. Step 5: Solve for x
    x = 290,234,694,721,103.81/20,704,816.20
  6. Step 6: Final answer
    x = 14,017,738.28

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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.