Home / 403,609,389.20-605,414,083.80-383,453,997.20

Finding the Fourth Proportional to 403,609,389.20, 605,414,083.80 and 383,453,997.20

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Solution

The fourth proportional to 403,609,389.20, 605,414,083.80 and 383,453,997.20 is: 575,180,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,609,389.20 : 605,414,083.80 = 383,453,997.20 : x
  2. Step 2: Convert to fraction form
    403,609,389.20/605,414,083.80 = 383,453,997.20/x
  3. Step 3: Cross multiply
    403,609,389.20x = 605,414,083.80 × 383,453,997.20
  4. Step 4: Simplify right side
    403,609,389.20x = 232,148,450,394,285,728
  5. Step 5: Solve for x
    x = 232,148,450,394,285,728/403,609,389.20
  6. Step 6: Final answer
    x = 575,180,995.80

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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.