Home / 443,231,998.80-664,847,998.20-213,082,616.40

Finding the Fourth Proportional to 443,231,998.80, 664,847,998.20 and 213,082,616.40

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Solution

The fourth proportional to 443,231,998.80, 664,847,998.20 and 213,082,616.40 is: 319,623,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,231,998.80 : 664,847,998.20 = 213,082,616.40 : x
  2. Step 2: Convert to fraction form
    443,231,998.80/664,847,998.20 = 213,082,616.40/x
  3. Step 3: Cross multiply
    443,231,998.80x = 664,847,998.20 × 213,082,616.40
  4. Step 4: Simplify right side
    443,231,998.80x = 141,667,550,964,758,512
  5. Step 5: Solve for x
    x = 141,667,550,964,758,512/443,231,998.80
  6. Step 6: Final answer
    x = 319,623,924.60

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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.