Home / 2,126,272.20-3,189,408.30-1,329,110.70

Finding the Fourth Proportional to 2,126,272.20, 3,189,408.30 and 1,329,110.70

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Solution

The fourth proportional to 2,126,272.20, 3,189,408.30 and 1,329,110.70 is: 1,993,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,272.20 : 3,189,408.30 = 1,329,110.70 : x
  2. Step 2: Convert to fraction form
    2,126,272.20/3,189,408.30 = 1,329,110.70/x
  3. Step 3: Cross multiply
    2,126,272.20x = 3,189,408.30 × 1,329,110.70
  4. Step 4: Simplify right side
    2,126,272.20x = 4,239,076,698,198.81
  5. Step 5: Solve for x
    x = 4,239,076,698,198.81/2,126,272.20
  6. Step 6: Final answer
    x = 1,993,666.05

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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.