Home / 490,131,090.60-735,196,635.90-259,981,708.20

Finding the Fourth Proportional to 490,131,090.60, 735,196,635.90 and 259,981,708.20

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Solution

The fourth proportional to 490,131,090.60, 735,196,635.90 and 259,981,708.20 is: 389,972,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,131,090.60 : 735,196,635.90 = 259,981,708.20 : x
  2. Step 2: Convert to fraction form
    490,131,090.60/735,196,635.90 = 259,981,708.20/x
  3. Step 3: Cross multiply
    490,131,090.60x = 735,196,635.90 × 259,981,708.20
  4. Step 4: Simplify right side
    490,131,090.60x = 191,137,677,264,175,424
  5. Step 5: Solve for x
    x = 191,137,677,264,175,424/490,131,090.60
  6. Step 6: Final answer
    x = 389,972,562.30

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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.