Home / 326,771,998.80-490,157,998.20-291,059,163.60

Finding the Fourth Proportional to 326,771,998.80, 490,157,998.20 and 291,059,163.60

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Solution

The fourth proportional to 326,771,998.80, 490,157,998.20 and 291,059,163.60 is: 436,588,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,771,998.80 : 490,157,998.20 = 291,059,163.60 : x
  2. Step 2: Convert to fraction form
    326,771,998.80/490,157,998.20 = 291,059,163.60/x
  3. Step 3: Cross multiply
    326,771,998.80x = 490,157,998.20 × 291,059,163.60
  4. Step 4: Simplify right side
    326,771,998.80x = 142,664,976,987,942,320
  5. Step 5: Solve for x
    x = 142,664,976,987,942,320/326,771,998.80
  6. Step 6: Final answer
    x = 436,588,745.40

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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.