Home / 13,325,414.56-18,389,113.52-7,213,828.48

Finding the Fourth Proportional to 13,325,414.56, 18,389,113.52 and 7,213,828.48

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Solution

The fourth proportional to 13,325,414.56, 18,389,113.52 and 7,213,828.48 is: 9,955,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,414.56 : 18,389,113.52 = 7,213,828.48 : x
  2. Step 2: Convert to fraction form
    13,325,414.56/18,389,113.52 = 7,213,828.48/x
  3. Step 3: Cross multiply
    13,325,414.56x = 18,389,113.52 × 7,213,828.48
  4. Step 4: Simplify right side
    13,325,414.56x = 132,655,910,832,529.05
  5. Step 5: Solve for x
    x = 132,655,910,832,529.05/13,325,414.56
  6. Step 6: Final answer
    x = 9,955,105.73

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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.