Home / 20,702,525,453.34-31,022,188,791.21-12,291,868,804.38

Finding the Fourth Proportional to 20,702,525,453.34, 31,022,188,791.21 and 12,291,868,804.38

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Solution

The fourth proportional to 20,702,525,453.34, 31,022,188,791.21 and 12,291,868,804.38 is: 18,419,041,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,525,453.34 : 31,022,188,791.21 = 12,291,868,804.38 : x
  2. Step 2: Convert to fraction form
    20,702,525,453.34/31,022,188,791.21 = 12,291,868,804.38/x
  3. Step 3: Cross multiply
    20,702,525,453.34x = 31,022,188,791.21 × 12,291,868,804.38
  4. Step 4: Simplify right side
    20,702,525,453.34x = 381,320,674,646,261,039,104
  5. Step 5: Solve for x
    x = 381,320,674,646,261,039,104/20,702,525,453.34
  6. Step 6: Final answer
    x = 18,419,041,459.73

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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.