Home / 13,493,010.78-18,620,794.96-7,381,439.28

Finding the Fourth Proportional to 13,493,010.78, 18,620,794.96 and 7,381,439.28

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Solution

The fourth proportional to 13,493,010.78, 18,620,794.96 and 7,381,439.28 is: 10,186,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493,010.78 : 18,620,794.96 = 7,381,439.28 : x
  2. Step 2: Convert to fraction form
    13,493,010.78/18,620,794.96 = 7,381,439.28/x
  3. Step 3: Cross multiply
    13,493,010.78x = 18,620,794.96 × 7,381,439.28
  4. Step 4: Simplify right side
    13,493,010.78x = 137,448,267,324,116.44
  5. Step 5: Solve for x
    x = 137,448,267,324,116.44/13,493,010.78
  6. Step 6: Final answer
    x = 10,186,626.96

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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.