Home / 13,628,250.38-18,806,321.13-8,121,499.22

Finding the Fourth Proportional to 13,628,250.38, 18,806,321.13 and 8,121,499.22

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Solution

The fourth proportional to 13,628,250.38, 18,806,321.13 and 8,121,499.22 is: 11,207,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,250.38 : 18,806,321.13 = 8,121,499.22 : x
  2. Step 2: Convert to fraction form
    13,628,250.38/18,806,321.13 = 8,121,499.22/x
  3. Step 3: Cross multiply
    13,628,250.38x = 18,806,321.13 × 8,121,499.22
  4. Step 4: Simplify right side
    13,628,250.38x = 152,735,522,388,364.50
  5. Step 5: Solve for x
    x = 152,735,522,388,364.50/13,628,250.38
  6. Step 6: Final answer
    x = 11,207,272.99

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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.