Home / 12,145,803.20-18,218,704.80-3,170,355.20

Finding the Fourth Proportional to 12,145,803.20, 18,218,704.80 and 3,170,355.20

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Solution

The fourth proportional to 12,145,803.20, 18,218,704.80 and 3,170,355.20 is: 4,755,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,803.20 : 18,218,704.80 = 3,170,355.20 : x
  2. Step 2: Convert to fraction form
    12,145,803.20/18,218,704.80 = 3,170,355.20/x
  3. Step 3: Cross multiply
    12,145,803.20x = 18,218,704.80 × 3,170,355.20
  4. Step 4: Simplify right side
    12,145,803.20x = 57,759,765,499,944.97
  5. Step 5: Solve for x
    x = 57,759,765,499,944.97/12,145,803.20
  6. Step 6: Final answer
    x = 4,755,532.80

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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.