Home / 330,150,778.20-494,050,436.10-287,488,531.80

Finding the Fourth Proportional to 330,150,778.20, 494,050,436.10 and 287,488,531.80

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Solution

The fourth proportional to 330,150,778.20, 494,050,436.10 and 287,488,531.80 is: 430,208,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,150,778.20 : 494,050,436.10 = 287,488,531.80 : x
  2. Step 2: Convert to fraction form
    330,150,778.20/494,050,436.10 = 287,488,531.80/x
  3. Step 3: Cross multiply
    330,150,778.20x = 494,050,436.10 × 287,488,531.80
  4. Step 4: Simplify right side
    330,150,778.20x = 142,033,834,509,538,736
  5. Step 5: Solve for x
    x = 142,033,834,509,538,736/330,150,778.20
  6. Step 6: Final answer
    x = 430,208,995.07

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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.