Home / 13,888,142.27-20,747,743.68-8,990,550.15

Finding the Fourth Proportional to 13,888,142.27, 20,747,743.68 and 8,990,550.15

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Solution

The fourth proportional to 13,888,142.27, 20,747,743.68 and 8,990,550.15 is: 13,431,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888,142.27 : 20,747,743.68 = 8,990,550.15 : x
  2. Step 2: Convert to fraction form
    13,888,142.27/20,747,743.68 = 8,990,550.15/x
  3. Step 3: Cross multiply
    13,888,142.27x = 20,747,743.68 × 8,990,550.15
  4. Step 4: Simplify right side
    13,888,142.27x = 186,533,630,010,296.09
  5. Step 5: Solve for x
    x = 186,533,630,010,296.09/13,888,142.27
  6. Step 6: Final answer
    x = 13,431,143.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.