Home / 21,383,999.10-32,075,998.65-20,628,171.90

Finding the Fourth Proportional to 21,383,999.10, 32,075,998.65 and 20,628,171.90

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Solution

The fourth proportional to 21,383,999.10, 32,075,998.65 and 20,628,171.90 is: 30,942,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,999.10 : 32,075,998.65 = 20,628,171.90 : x
  2. Step 2: Convert to fraction form
    21,383,999.10/32,075,998.65 = 20,628,171.90/x
  3. Step 3: Cross multiply
    21,383,999.10x = 32,075,998.65 × 20,628,171.90
  4. Step 4: Simplify right side
    21,383,999.10x = 661,669,214,016,367.88
  5. Step 5: Solve for x
    x = 661,669,214,016,367.88/21,383,999.10
  6. Step 6: Final answer
    x = 30,942,257.85

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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.