Home / 354,148,529.10-531,222,793.65-280,171,941.90

Finding the Fourth Proportional to 354,148,529.10, 531,222,793.65 and 280,171,941.90

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Solution

The fourth proportional to 354,148,529.10, 531,222,793.65 and 280,171,941.90 is: 420,257,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,148,529.10 : 531,222,793.65 = 280,171,941.90 : x
  2. Step 2: Convert to fraction form
    354,148,529.10/531,222,793.65 = 280,171,941.90/x
  3. Step 3: Cross multiply
    354,148,529.10x = 531,222,793.65 × 280,171,941.90
  4. Step 4: Simplify right side
    354,148,529.10x = 148,833,721,678,463,456
  5. Step 5: Solve for x
    x = 148,833,721,678,463,456/354,148,529.10
  6. Step 6: Final answer
    x = 420,257,912.85

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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.