Home / 21,969,976.92-30,320,364.80-12,183,490.88

Finding the Fourth Proportional to 21,969,976.92, 30,320,364.80 and 12,183,490.88

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Solution

The fourth proportional to 21,969,976.92, 30,320,364.80 and 12,183,490.88 is: 16,814,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,976.92 : 30,320,364.80 = 12,183,490.88 : x
  2. Step 2: Convert to fraction form
    21,969,976.92/30,320,364.80 = 12,183,490.88/x
  3. Step 3: Cross multiply
    21,969,976.92x = 30,320,364.80 × 12,183,490.88
  4. Step 4: Simplify right side
    21,969,976.92x = 369,407,888,019,073.06
  5. Step 5: Solve for x
    x = 369,407,888,019,073.06/21,969,976.92
  6. Step 6: Final answer
    x = 16,814,213.75

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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.