Home / 279,938,010.30-419,907,015.45-157,494,003.90

Finding the Fourth Proportional to 279,938,010.30, 419,907,015.45 and 157,494,003.90

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Solution

The fourth proportional to 279,938,010.30, 419,907,015.45 and 157,494,003.90 is: 236,241,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,010.30 : 419,907,015.45 = 157,494,003.90 : x
  2. Step 2: Convert to fraction form
    279,938,010.30/419,907,015.45 = 157,494,003.90/x
  3. Step 3: Cross multiply
    279,938,010.30x = 419,907,015.45 × 157,494,003.90
  4. Step 4: Simplify right side
    279,938,010.30x = 66,132,837,128,919,664
  5. Step 5: Solve for x
    x = 66,132,837,128,919,664/279,938,010.30
  6. Step 6: Final answer
    x = 236,241,005.85

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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.