Home / 2,147,091.20-2,962,952.64-1,180,200.80

Finding the Fourth Proportional to 2,147,091.20, 2,962,952.64 and 1,180,200.80

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Solution

The fourth proportional to 2,147,091.20, 2,962,952.64 and 1,180,200.80 is: 1,628,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,091.20 : 2,962,952.64 = 1,180,200.80 : x
  2. Step 2: Convert to fraction form
    2,147,091.20/2,962,952.64 = 1,180,200.80/x
  3. Step 3: Cross multiply
    2,147,091.20x = 2,962,952.64 × 1,180,200.80
  4. Step 4: Simplify right side
    2,147,091.20x = 3,496,879,076,090.11
  5. Step 5: Solve for x
    x = 3,496,879,076,090.11/2,147,091.20
  6. Step 6: Final answer
    x = 1,628,658.85

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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.