Home / 382,218,736.80-573,328,105.20-209,628,861.60

Finding the Fourth Proportional to 382,218,736.80, 573,328,105.20 and 209,628,861.60

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Solution

The fourth proportional to 382,218,736.80, 573,328,105.20 and 209,628,861.60 is: 314,443,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,218,736.80 : 573,328,105.20 = 209,628,861.60 : x
  2. Step 2: Convert to fraction form
    382,218,736.80/573,328,105.20 = 209,628,861.60/x
  3. Step 3: Cross multiply
    382,218,736.80x = 573,328,105.20 × 209,628,861.60
  4. Step 4: Simplify right side
    382,218,736.80x = 120,186,118,016,361,040
  5. Step 5: Solve for x
    x = 120,186,118,016,361,040/382,218,736.80
  6. Step 6: Final answer
    x = 314,443,292.40

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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.