Home / 20,659,457.50-31,008,601.78-10,818,584.30

Finding the Fourth Proportional to 20,659,457.50, 31,008,601.78 and 10,818,584.30

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Solution

The fourth proportional to 20,659,457.50, 31,008,601.78 and 10,818,584.30 is: 16,238,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,457.50 : 31,008,601.78 = 10,818,584.30 : x
  2. Step 2: Convert to fraction form
    20,659,457.50/31,008,601.78 = 10,818,584.30/x
  3. Step 3: Cross multiply
    20,659,457.50x = 31,008,601.78 × 10,818,584.30
  4. Step 4: Simplify right side
    20,659,457.50x = 335,469,172,432,535.12
  5. Step 5: Solve for x
    x = 335,469,172,432,535.12/20,659,457.50
  6. Step 6: Final answer
    x = 16,238,043.64

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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.