Home / 214,560,520.80-321,840,781.20-78,250,351.20

Finding the Fourth Proportional to 214,560,520.80, 321,840,781.20 and 78,250,351.20

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Solution

The fourth proportional to 214,560,520.80, 321,840,781.20 and 78,250,351.20 is: 117,375,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,560,520.80 : 321,840,781.20 = 78,250,351.20 : x
  2. Step 2: Convert to fraction form
    214,560,520.80/321,840,781.20 = 78,250,351.20/x
  3. Step 3: Cross multiply
    214,560,520.80x = 321,840,781.20 × 78,250,351.20
  4. Step 4: Simplify right side
    214,560,520.80x = 25,184,154,159,382,356
  5. Step 5: Solve for x
    x = 25,184,154,159,382,356/214,560,520.80
  6. Step 6: Final answer
    x = 117,375,526.80

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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.