Home / 603,612,010.20-905,418,015.30-419,946,000.60

Finding the Fourth Proportional to 603,612,010.20, 905,418,015.30 and 419,946,000.60

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Solution

The fourth proportional to 603,612,010.20, 905,418,015.30 and 419,946,000.60 is: 629,919,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,612,010.20 : 905,418,015.30 = 419,946,000.60 : x
  2. Step 2: Convert to fraction form
    603,612,010.20/905,418,015.30 = 419,946,000.60/x
  3. Step 3: Cross multiply
    603,612,010.20x = 905,418,015.30 × 419,946,000.60
  4. Step 4: Simplify right side
    603,612,010.20x = 380,226,674,396,424,640
  5. Step 5: Solve for x
    x = 380,226,674,396,424,640/603,612,010.20
  6. Step 6: Final answer
    x = 629,919,000.90

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1.5x scale

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.