Home / 13,150,136.70-18,145,616.76-7,268,976.38

Finding the Fourth Proportional to 13,150,136.70, 18,145,616.76 and 7,268,976.38

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Solution

The fourth proportional to 13,150,136.70, 18,145,616.76 and 7,268,976.38 is: 10,030,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150,136.70 : 18,145,616.76 = 7,268,976.38 : x
  2. Step 2: Convert to fraction form
    13,150,136.70/18,145,616.76 = 7,268,976.38/x
  3. Step 3: Cross multiply
    13,150,136.70x = 18,145,616.76 × 7,268,976.38
  4. Step 4: Simplify right side
    13,150,136.70x = 131,900,059,674,336.19
  5. Step 5: Solve for x
    x = 131,900,059,674,336.19/13,150,136.70
  6. Step 6: Final answer
    x = 10,030,318.52

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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.