Home / 436,626,876.80-654,940,315.20-321,835,620.80

Finding the Fourth Proportional to 436,626,876.80, 654,940,315.20 and 321,835,620.80

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Solution

The fourth proportional to 436,626,876.80, 654,940,315.20 and 321,835,620.80 is: 482,753,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,626,876.80 : 654,940,315.20 = 321,835,620.80 : x
  2. Step 2: Convert to fraction form
    436,626,876.80/654,940,315.20 = 321,835,620.80/x
  3. Step 3: Cross multiply
    436,626,876.80x = 654,940,315.20 × 321,835,620.80
  4. Step 4: Simplify right side
    436,626,876.80x = 210,783,122,929,339,712
  5. Step 5: Solve for x
    x = 210,783,122,929,339,712/436,626,876.80
  6. Step 6: Final answer
    x = 482,753,431.20

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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.