Home / 21,472,698.20-32,188,052.10-19,205,216.60

Finding the Fourth Proportional to 21,472,698.20, 32,188,052.10 and 19,205,216.60

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Solution

The fourth proportional to 21,472,698.20, 32,188,052.10 and 19,205,216.60 is: 28,789,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472,698.20 : 32,188,052.10 = 19,205,216.60 : x
  2. Step 2: Convert to fraction form
    21,472,698.20/32,188,052.10 = 19,205,216.60/x
  3. Step 3: Cross multiply
    21,472,698.20x = 32,188,052.10 × 19,205,216.60
  4. Step 4: Simplify right side
    21,472,698.20x = 618,178,512,512,584.88
  5. Step 5: Solve for x
    x = 618,178,512,512,584.88/21,472,698.20
  6. Step 6: Final answer
    x = 28,789,046.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.