Home / 13,103,474.36-18,082,811.82-7,302,128.72

Finding the Fourth Proportional to 13,103,474.36, 18,082,811.82 and 7,302,128.72

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Solution

The fourth proportional to 13,103,474.36, 18,082,811.82 and 7,302,128.72 is: 10,076,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,474.36 : 18,082,811.82 = 7,302,128.72 : x
  2. Step 2: Convert to fraction form
    13,103,474.36/18,082,811.82 = 7,302,128.72/x
  3. Step 3: Cross multiply
    13,103,474.36x = 18,082,811.82 × 7,302,128.72
  4. Step 4: Simplify right side
    13,103,474.36x = 132,043,019,529,177.47
  5. Step 5: Solve for x
    x = 132,043,019,529,177.47/13,103,474.36
  6. Step 6: Final answer
    x = 10,076,947.22

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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.