Home / 330,150,980.20-494,050,739.10-287,488,733.80

Finding the Fourth Proportional to 330,150,980.20, 494,050,739.10 and 287,488,733.80

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Solution

The fourth proportional to 330,150,980.20, 494,050,739.10 and 287,488,733.80 is: 430,209,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,150,980.20 : 494,050,739.10 = 287,488,733.80 : x
  2. Step 2: Convert to fraction form
    330,150,980.20/494,050,739.10 = 287,488,733.80/x
  3. Step 3: Cross multiply
    330,150,980.20x = 494,050,739.10 × 287,488,733.80
  4. Step 4: Simplify right side
    330,150,980.20x = 142,034,021,416,813,168
  5. Step 5: Solve for x
    x = 142,034,021,416,813,168/330,150,980.20
  6. Step 6: Final answer
    x = 430,209,297.97

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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.