Home / 13,391,331.50-18,480,168.69-7,279,891.22

Finding the Fourth Proportional to 13,391,331.50, 18,480,168.69 and 7,279,891.22

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Solution

The fourth proportional to 13,391,331.50, 18,480,168.69 and 7,279,891.22 is: 10,046,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391,331.50 : 18,480,168.69 = 7,279,891.22 : x
  2. Step 2: Convert to fraction form
    13,391,331.50/18,480,168.69 = 7,279,891.22/x
  3. Step 3: Cross multiply
    13,391,331.50x = 18,480,168.69 × 7,279,891.22
  4. Step 4: Simplify right side
    13,391,331.50x = 134,533,617,790,449.91
  5. Step 5: Solve for x
    x = 134,533,617,790,449.91/13,391,331.50
  6. Step 6: Final answer
    x = 10,046,321.22

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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.