Home / 8,168,147.80-11,269,011.90-8,155,550.68

Finding the Fourth Proportional to 8,168,147.80, 11,269,011.90 and 8,155,550.68

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Solution

The fourth proportional to 8,168,147.80, 11,269,011.90 and 8,155,550.68 is: 11,251,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168,147.80 : 11,269,011.90 = 8,155,550.68 : x
  2. Step 2: Convert to fraction form
    8,168,147.80/11,269,011.90 = 8,155,550.68/x
  3. Step 3: Cross multiply
    8,168,147.80x = 11,269,011.90 × 8,155,550.68
  4. Step 4: Simplify right side
    8,168,147.80x = 91,904,997,663,973.09
  5. Step 5: Solve for x
    x = 91,904,997,663,973.09/8,168,147.80
  6. Step 6: Final answer
    x = 11,251,632.55

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Double scale
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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.