Home / 2,128,125.20-3,192,187.80-2,012,651.60

Finding the Fourth Proportional to 2,128,125.20, 3,192,187.80 and 2,012,651.60

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Solution

The fourth proportional to 2,128,125.20, 3,192,187.80 and 2,012,651.60 is: 3,018,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,125.20 : 3,192,187.80 = 2,012,651.60 : x
  2. Step 2: Convert to fraction form
    2,128,125.20/3,192,187.80 = 2,012,651.60/x
  3. Step 3: Cross multiply
    2,128,125.20x = 3,192,187.80 × 2,012,651.60
  4. Step 4: Simplify right side
    2,128,125.20x = 6,424,761,883,170.48
  5. Step 5: Solve for x
    x = 6,424,761,883,170.48/2,128,125.20
  6. Step 6: Final answer
    x = 3,018,977.40

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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.