Home / 215,758,589.60-323,637,884.40-212,175,408.80

Finding the Fourth Proportional to 215,758,589.60, 323,637,884.40 and 212,175,408.80

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Solution

The fourth proportional to 215,758,589.60, 323,637,884.40 and 212,175,408.80 is: 318,263,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,758,589.60 : 323,637,884.40 = 212,175,408.80 : x
  2. Step 2: Convert to fraction form
    215,758,589.60/323,637,884.40 = 212,175,408.80/x
  3. Step 3: Cross multiply
    215,758,589.60x = 323,637,884.40 × 212,175,408.80
  4. Step 4: Simplify right side
    215,758,589.60x = 68,668,000,425,737,144
  5. Step 5: Solve for x
    x = 68,668,000,425,737,144/215,758,589.60
  6. Step 6: Final answer
    x = 318,263,113.20

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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.