Home / 279,937,121.40-419,905,682.10-171,098,004.60

Finding the Fourth Proportional to 279,937,121.40, 419,905,682.10 and 171,098,004.60

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Solution

The fourth proportional to 279,937,121.40, 419,905,682.10 and 171,098,004.60 is: 256,647,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,121.40 : 419,905,682.10 = 171,098,004.60 : x
  2. Step 2: Convert to fraction form
    279,937,121.40/419,905,682.10 = 171,098,004.60/x
  3. Step 3: Cross multiply
    279,937,121.40x = 419,905,682.10 × 171,098,004.60
  4. Step 4: Simplify right side
    279,937,121.40x = 71,845,024,327,511,936
  5. Step 5: Solve for x
    x = 71,845,024,327,511,936/279,937,121.40
  6. Step 6: Final answer
    x = 256,647,006.90

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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.