Home / 21,960,395.75-30,305,348.96-12,171,471.91

Finding the Fourth Proportional to 21,960,395.75, 30,305,348.96 and 12,171,471.91

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Solution

The fourth proportional to 21,960,395.75, 30,305,348.96 and 12,171,471.91 is: 16,796,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,395.75 : 30,305,348.96 = 12,171,471.91 : x
  2. Step 2: Convert to fraction form
    21,960,395.75/30,305,348.96 = 12,171,471.91/x
  3. Step 3: Cross multiply
    21,960,395.75x = 30,305,348.96 × 12,171,471.91
  4. Step 4: Simplify right side
    21,960,395.75x = 368,860,703,589,387.75
  5. Step 5: Solve for x
    x = 368,860,703,589,387.75/21,960,395.75
  6. Step 6: Final answer
    x = 16,796,632.80

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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.