Home / 422,934,822.87-634,401,361.83-238,618,628.49

Finding the Fourth Proportional to 422,934,822.87, 634,401,361.83 and 238,618,628.49

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Solution

The fourth proportional to 422,934,822.87, 634,401,361.83 and 238,618,628.49 is: 357,927,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,934,822.87 : 634,401,361.83 = 238,618,628.49 : x
  2. Step 2: Convert to fraction form
    422,934,822.87/634,401,361.83 = 238,618,628.49/x
  3. Step 3: Cross multiply
    422,934,822.87x = 634,401,361.83 × 238,618,628.49
  4. Step 4: Simplify right side
    422,934,822.87x = 151,379,982,872,062,848
  5. Step 5: Solve for x
    x = 151,379,982,872,062,848/422,934,822.87
  6. Step 6: Final answer
    x = 357,927,450.49

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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.