Home / 330,149,320.20-494,048,249.10-287,487,073.80

Finding the Fourth Proportional to 330,149,320.20, 494,048,249.10 and 287,487,073.80

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Solution

The fourth proportional to 330,149,320.20, 494,048,249.10 and 287,487,073.80 is: 430,206,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,149,320.20 : 494,048,249.10 = 287,487,073.80 : x
  2. Step 2: Convert to fraction form
    330,149,320.20/494,048,249.10 = 287,487,073.80/x
  3. Step 3: Cross multiply
    330,149,320.20x = 494,048,249.10 × 287,487,073.80
  4. Step 4: Simplify right side
    330,149,320.20x = 142,032,485,449,772,496
  5. Step 5: Solve for x
    x = 142,032,485,449,772,496/330,149,320.20
  6. Step 6: Final answer
    x = 430,206,808.74

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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.