Home / 15,188,655.14-20,960,344.13-8,313,137.22

Finding the Fourth Proportional to 15,188,655.14, 20,960,344.13 and 8,313,137.22

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Solution

The fourth proportional to 15,188,655.14, 20,960,344.13 and 8,313,137.22 is: 11,472,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,655.14 : 20,960,344.13 = 8,313,137.22 : x
  2. Step 2: Convert to fraction form
    15,188,655.14/20,960,344.13 = 8,313,137.22/x
  3. Step 3: Cross multiply
    15,188,655.14x = 20,960,344.13 × 8,313,137.22
  4. Step 4: Simplify right side
    15,188,655.14x = 174,246,216,931,111.50
  5. Step 5: Solve for x
    x = 174,246,216,931,111.50/15,188,655.14
  6. Step 6: Final answer
    x = 11,472,129.38

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1.5x scale

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.