Home / 14,995,999.20-20,694,441.68-8,120,480.80

Finding the Fourth Proportional to 14,995,999.20, 20,694,441.68 and 8,120,480.80

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Solution

The fourth proportional to 14,995,999.20, 20,694,441.68 and 8,120,480.80 is: 11,206,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995,999.20 : 20,694,441.68 = 8,120,480.80 : x
  2. Step 2: Convert to fraction form
    14,995,999.20/20,694,441.68 = 8,120,480.80/x
  3. Step 3: Cross multiply
    14,995,999.20x = 20,694,441.68 × 8,120,480.80
  4. Step 4: Simplify right side
    14,995,999.20x = 168,048,816,329,159.75
  5. Step 5: Solve for x
    x = 168,048,816,329,159.75/14,995,999.20
  6. Step 6: Final answer
    x = 11,206,243.35

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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.