Home / 221,425,163.20-332,137,744.80-205,300,849.60

Finding the Fourth Proportional to 221,425,163.20, 332,137,744.80 and 205,300,849.60

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Solution

The fourth proportional to 221,425,163.20, 332,137,744.80 and 205,300,849.60 is: 307,951,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,425,163.20 : 332,137,744.80 = 205,300,849.60 : x
  2. Step 2: Convert to fraction form
    221,425,163.20/332,137,744.80 = 205,300,849.60/x
  3. Step 3: Cross multiply
    221,425,163.20x = 332,137,744.80 × 205,300,849.60
  4. Step 4: Simplify right side
    221,425,163.20x = 68,188,161,191,667,984
  5. Step 5: Solve for x
    x = 68,188,161,191,667,984/221,425,163.20
  6. Step 6: Final answer
    x = 307,951,274.40

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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.