Home / 13,012,489.72-17,957,282.56-7,211,370.16

Finding the Fourth Proportional to 13,012,489.72, 17,957,282.56 and 7,211,370.16

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Solution

The fourth proportional to 13,012,489.72, 17,957,282.56 and 7,211,370.16 is: 9,951,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,489.72 : 17,957,282.56 = 7,211,370.16 : x
  2. Step 2: Convert to fraction form
    13,012,489.72/17,957,282.56 = 7,211,370.16/x
  3. Step 3: Cross multiply
    13,012,489.72x = 17,957,282.56 × 7,211,370.16
  4. Step 4: Simplify right side
    13,012,489.72x = 129,496,611,500,057.58
  5. Step 5: Solve for x
    x = 129,496,611,500,057.58/13,012,489.72
  6. Step 6: Final answer
    x = 9,951,716.72

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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.