Home / 21,906,714.21-30,229,236.83-12,116,947.70

Finding the Fourth Proportional to 21,906,714.21, 30,229,236.83 and 12,116,947.70

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Solution

The fourth proportional to 21,906,714.21, 30,229,236.83 and 12,116,947.70 is: 16,720,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906,714.21 : 30,229,236.83 = 12,116,947.70 : x
  2. Step 2: Convert to fraction form
    21,906,714.21/30,229,236.83 = 12,116,947.70/x
  3. Step 3: Cross multiply
    21,906,714.21x = 30,229,236.83 × 12,116,947.70
  4. Step 4: Simplify right side
    21,906,714.21x = 366,286,081,468,292.88
  5. Step 5: Solve for x
    x = 366,286,081,468,292.88/21,906,714.21
  6. Step 6: Final answer
    x = 16,720,265.67

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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.