Home / 13,938,192,803.70-20,892,401,839.87-7,949,425,361.38

Finding the Fourth Proportional to 13,938,192,803.70, 20,892,401,839.87 and 7,949,425,361.38

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Solution

The fourth proportional to 13,938,192,803.70, 20,892,401,839.87 and 7,949,425,361.38 is: 11,915,647,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938,192,803.70 : 20,892,401,839.87 = 7,949,425,361.38 : x
  2. Step 2: Convert to fraction form
    13,938,192,803.70/20,892,401,839.87 = 7,949,425,361.38/x
  3. Step 3: Cross multiply
    13,938,192,803.70x = 20,892,401,839.87 × 7,949,425,361.38
  4. Step 4: Simplify right side
    13,938,192,803.70x = 166,082,589,045,936,619,520
  5. Step 5: Solve for x
    x = 166,082,589,045,936,619,520/13,938,192,803.70
  6. Step 6: Final answer
    x = 11,915,647,271.13

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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.