Home / 13,120,085.52-18,105,744.24-7,318,716.48

Finding the Fourth Proportional to 13,120,085.52, 18,105,744.24 and 7,318,716.48

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Solution

The fourth proportional to 13,120,085.52, 18,105,744.24 and 7,318,716.48 is: 10,099,843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,085.52 : 18,105,744.24 = 7,318,716.48 : x
  2. Step 2: Convert to fraction form
    13,120,085.52/18,105,744.24 = 7,318,716.48/x
  3. Step 3: Cross multiply
    13,120,085.52x = 18,105,744.24 × 7,318,716.48
  4. Step 4: Simplify right side
    13,120,085.52x = 132,510,808,751,953.08
  5. Step 5: Solve for x
    x = 132,510,808,751,953.08/13,120,085.52
  6. Step 6: Final answer
    x = 10,099,843.37

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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.