Home / 21,757,440.21-30,023,787.33-12,591,460.77

Finding the Fourth Proportional to 21,757,440.21, 30,023,787.33 and 12,591,460.77

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Solution

The fourth proportional to 21,757,440.21, 30,023,787.33 and 12,591,460.77 is: 17,375,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757,440.21 : 30,023,787.33 = 12,591,460.77 : x
  2. Step 2: Convert to fraction form
    21,757,440.21/30,023,787.33 = 12,591,460.77/x
  3. Step 3: Cross multiply
    21,757,440.21x = 30,023,787.33 × 12,591,460.77
  4. Step 4: Simplify right side
    21,757,440.21x = 378,043,340,332,518
  5. Step 5: Solve for x
    x = 378,043,340,332,518/21,757,440.21
  6. Step 6: Final answer
    x = 17,375,359.26

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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.