Home / 330,150,968.20-494,050,721.10-287,488,721.80

Finding the Fourth Proportional to 330,150,968.20, 494,050,721.10 and 287,488,721.80

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Solution

The fourth proportional to 330,150,968.20, 494,050,721.10 and 287,488,721.80 is: 430,209,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,150,968.20 : 494,050,721.10 = 287,488,721.80 : x
  2. Step 2: Convert to fraction form
    330,150,968.20/494,050,721.10 = 287,488,721.80/x
  3. Step 3: Cross multiply
    330,150,968.20x = 494,050,721.10 × 287,488,721.80
  4. Step 4: Simplify right side
    330,150,968.20x = 142,034,010,313,407,296
  5. Step 5: Solve for x
    x = 142,034,010,313,407,296/330,150,968.20
  6. Step 6: Final answer
    x = 430,209,279.98

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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.