Home / 445,762,021.20-667,320,334.20-331,254,200.40

Finding the Fourth Proportional to 445,762,021.20, 667,320,334.20 and 331,254,200.40

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Solution

The fourth proportional to 445,762,021.20, 667,320,334.20 and 331,254,200.40 is: 495,898,378.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,762,021.20 : 667,320,334.20 = 331,254,200.40 : x
  2. Step 2: Convert to fraction form
    445,762,021.20/667,320,334.20 = 331,254,200.40/x
  3. Step 3: Cross multiply
    445,762,021.20x = 667,320,334.20 × 331,254,200.40
  4. Step 4: Simplify right side
    445,762,021.20x = 221,052,663,716,081,760
  5. Step 5: Solve for x
    x = 221,052,663,716,081,760/445,762,021.20
  6. Step 6: Final answer
    x = 495,898,378.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.