Home / 20,460,652.82-28,231,485.89-11,757,143.92

Finding the Fourth Proportional to 20,460,652.82, 28,231,485.89 and 11,757,143.92

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Solution

The fourth proportional to 20,460,652.82, 28,231,485.89 and 11,757,143.92 is: 16,222,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,652.82 : 28,231,485.89 = 11,757,143.92 : x
  2. Step 2: Convert to fraction form
    20,460,652.82/28,231,485.89 = 11,757,143.92/x
  3. Step 3: Cross multiply
    20,460,652.82x = 28,231,485.89 × 11,757,143.92
  4. Step 4: Simplify right side
    20,460,652.82x = 331,921,642,622,788.81
  5. Step 5: Solve for x
    x = 331,921,642,622,788.81/20,460,652.82
  6. Step 6: Final answer
    x = 16,222,436.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.