Home / 20,997,631.80-31,496,447.70-17,410,405.05

Finding the Fourth Proportional to 20,997,631.80, 31,496,447.70 and 17,410,405.05

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Solution

The fourth proportional to 20,997,631.80, 31,496,447.70 and 17,410,405.05 is: 26,115,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,631.80 : 31,496,447.70 = 17,410,405.05 : x
  2. Step 2: Convert to fraction form
    20,997,631.80/31,496,447.70 = 17,410,405.05/x
  3. Step 3: Cross multiply
    20,997,631.80x = 31,496,447.70 × 17,410,405.05
  4. Step 4: Simplify right side
    20,997,631.80x = 548,365,912,093,140.88
  5. Step 5: Solve for x
    x = 548,365,912,093,140.88/20,997,631.80
  6. Step 6: Final answer
    x = 26,115,607.58

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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.