Home / 3,280,658.20-4,920,987.30-3,081,203.80

Finding the Fourth Proportional to 3,280,658.20, 4,920,987.30 and 3,081,203.80

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Solution

The fourth proportional to 3,280,658.20, 4,920,987.30 and 3,081,203.80 is: 4,621,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,658.20 : 4,920,987.30 = 3,081,203.80 : x
  2. Step 2: Convert to fraction form
    3,280,658.20/4,920,987.30 = 3,081,203.80/x
  3. Step 3: Cross multiply
    3,280,658.20x = 4,920,987.30 × 3,081,203.80
  4. Step 4: Simplify right side
    3,280,658.20x = 15,162,564,768,511.74
  5. Step 5: Solve for x
    x = 15,162,564,768,511.74/3,280,658.20
  6. Step 6: Final answer
    x = 4,621,805.70

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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.