Home / 215,492,560.20-323,238,840.30-212,091,337.80

Finding the Fourth Proportional to 215,492,560.20, 323,238,840.30 and 212,091,337.80

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Solution

The fourth proportional to 215,492,560.20, 323,238,840.30 and 212,091,337.80 is: 318,137,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,492,560.20 : 323,238,840.30 = 212,091,337.80 : x
  2. Step 2: Convert to fraction form
    215,492,560.20/323,238,840.30 = 212,091,337.80/x
  3. Step 3: Cross multiply
    215,492,560.20x = 323,238,840.30 × 212,091,337.80
  4. Step 4: Simplify right side
    215,492,560.20x = 68,556,158,068,147,560
  5. Step 5: Solve for x
    x = 68,556,158,068,147,560/215,492,560.20
  6. Step 6: Final answer
    x = 318,137,006.70

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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.