Home / 15,188,655.64-20,960,344.82-8,313,137.72

Finding the Fourth Proportional to 15,188,655.64, 20,960,344.82 and 8,313,137.72

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Solution

The fourth proportional to 15,188,655.64, 20,960,344.82 and 8,313,137.72 is: 11,472,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,655.64 : 20,960,344.82 = 8,313,137.72 : x
  2. Step 2: Convert to fraction form
    15,188,655.64/20,960,344.82 = 8,313,137.72/x
  3. Step 3: Cross multiply
    15,188,655.64x = 20,960,344.82 × 8,313,137.72
  4. Step 4: Simplify right side
    15,188,655.64x = 174,246,233,147,348.59
  5. Step 5: Solve for x
    x = 174,246,233,147,348.59/15,188,655.64
  6. Step 6: Final answer
    x = 11,472,130.07

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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.