Home / 3,670,320.90-5,505,481.35-3,138,879.90

Finding the Fourth Proportional to 3,670,320.90, 5,505,481.35 and 3,138,879.90

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Solution

The fourth proportional to 3,670,320.90, 5,505,481.35 and 3,138,879.90 is: 4,708,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,320.90 : 5,505,481.35 = 3,138,879.90 : x
  2. Step 2: Convert to fraction form
    3,670,320.90/5,505,481.35 = 3,138,879.90/x
  3. Step 3: Cross multiply
    3,670,320.90x = 5,505,481.35 × 3,138,879.90
  4. Step 4: Simplify right side
    3,670,320.90x = 17,281,044,749,339.86
  5. Step 5: Solve for x
    x = 17,281,044,749,339.86/3,670,320.90
  6. Step 6: Final answer
    x = 4,708,319.85

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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.