Home / 330,149,348.20-494,048,291.10-287,487,101.80

Finding the Fourth Proportional to 330,149,348.20, 494,048,291.10 and 287,487,101.80

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Solution

The fourth proportional to 330,149,348.20, 494,048,291.10 and 287,487,101.80 is: 430,206,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,149,348.20 : 494,048,291.10 = 287,487,101.80 : x
  2. Step 2: Convert to fraction form
    330,149,348.20/494,048,291.10 = 287,487,101.80/x
  3. Step 3: Cross multiply
    330,149,348.20x = 494,048,291.10 × 287,487,101.80
  4. Step 4: Simplify right side
    330,149,348.20x = 142,032,511,357,581,744
  5. Step 5: Solve for x
    x = 142,032,511,357,581,744/330,149,348.20
  6. Step 6: Final answer
    x = 430,206,850.72

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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.