Home / 330,149,325.20-494,048,256.60-287,487,078.80

Finding the Fourth Proportional to 330,149,325.20, 494,048,256.60 and 287,487,078.80

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Solution

The fourth proportional to 330,149,325.20, 494,048,256.60 and 287,487,078.80 is: 430,206,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,149,325.20 : 494,048,256.60 = 287,487,078.80 : x
  2. Step 2: Convert to fraction form
    330,149,325.20/494,048,256.60 = 287,487,078.80/x
  3. Step 3: Cross multiply
    330,149,325.20x = 494,048,256.60 × 287,487,078.80
  4. Step 4: Simplify right side
    330,149,325.20x = 142,032,490,076,166,832
  5. Step 5: Solve for x
    x = 142,032,490,076,166,832/330,149,325.20
  6. Step 6: Final answer
    x = 430,206,816.23

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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.