Home / 449,325,990.80-673,988,986.20-255,162,381.20

Finding the Fourth Proportional to 449,325,990.80, 673,988,986.20 and 255,162,381.20

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Solution

The fourth proportional to 449,325,990.80, 673,988,986.20 and 255,162,381.20 is: 382,743,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,325,990.80 : 673,988,986.20 = 255,162,381.20 : x
  2. Step 2: Convert to fraction form
    449,325,990.80/673,988,986.20 = 255,162,381.20/x
  3. Step 3: Cross multiply
    449,325,990.80x = 673,988,986.20 × 255,162,381.20
  4. Step 4: Simplify right side
    449,325,990.80x = 171,976,634,621,365,952
  5. Step 5: Solve for x
    x = 171,976,634,621,365,952/449,325,990.80
  6. Step 6: Final answer
    x = 382,743,571.80

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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.