Home / 8,177,150.88-12,202,727.76-7,181,978.40

Finding the Fourth Proportional to 8,177,150.88, 12,202,727.76 and 7,181,978.40

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Solution

The fourth proportional to 8,177,150.88, 12,202,727.76 and 7,181,978.40 is: 10,717,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177,150.88 : 12,202,727.76 = 7,181,978.40 : x
  2. Step 2: Convert to fraction form
    8,177,150.88/12,202,727.76 = 7,181,978.40/x
  3. Step 3: Cross multiply
    8,177,150.88x = 12,202,727.76 × 7,181,978.40
  4. Step 4: Simplify right side
    8,177,150.88x = 87,639,727,193,400.39
  5. Step 5: Solve for x
    x = 87,639,727,193,400.39/8,177,150.88
  6. Step 6: Final answer
    x = 10,717,636.07

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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.