Home / 603,825,999.40-905,738,999.10-258,814,502.20

Finding the Fourth Proportional to 603,825,999.40, 905,738,999.10 and 258,814,502.20

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Solution

The fourth proportional to 603,825,999.40, 905,738,999.10 and 258,814,502.20 is: 388,221,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,825,999.40 : 905,738,999.10 = 258,814,502.20 : x
  2. Step 2: Convert to fraction form
    603,825,999.40/905,738,999.10 = 258,814,502.20/x
  3. Step 3: Cross multiply
    603,825,999.40x = 905,738,999.10 × 258,814,502.20
  4. Step 4: Simplify right side
    603,825,999.40x = 234,418,388,175,192,736
  5. Step 5: Solve for x
    x = 234,418,388,175,192,736/603,825,999.40
  6. Step 6: Final answer
    x = 388,221,753.30

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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.