Home / 318,553,259,948.22-439,603,675,105.24-172,065,720,687.62

Finding the Fourth Proportional to 318,553,259,948.22, 439,603,675,105.24 and 172,065,720,687.62

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Solution

The fourth proportional to 318,553,259,948.22, 439,603,675,105.24 and 172,065,720,687.62 is: 237,450,789,818.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,553,259,948.22 : 439,603,675,105.24 = 172,065,720,687.62 : x
  2. Step 2: Convert to fraction form
    318,553,259,948.22/439,603,675,105.24 = 172,065,720,687.62/x
  3. Step 3: Cross multiply
    318,553,259,948.22x = 439,603,675,105.24 × 172,065,720,687.62
  4. Step 4: Simplify right side
    318,553,259,948.22x = 75,640,723,173,909,475,622,912
  5. Step 5: Solve for x
    x = 75,640,723,173,909,475,622,912/318,553,259,948.22
  6. Step 6: Final answer
    x = 237,450,789,818.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.