Home / 215,492,553.70-323,238,830.55-212,091,331.30

Finding the Fourth Proportional to 215,492,553.70, 323,238,830.55 and 212,091,331.30

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Solution

The fourth proportional to 215,492,553.70, 323,238,830.55 and 212,091,331.30 is: 318,136,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,492,553.70 : 323,238,830.55 = 212,091,331.30 : x
  2. Step 2: Convert to fraction form
    215,492,553.70/323,238,830.55 = 212,091,331.30/x
  3. Step 3: Cross multiply
    215,492,553.70x = 323,238,830.55 × 212,091,331.30
  4. Step 4: Simplify right side
    215,492,553.70x = 68,556,153,899,204,616
  5. Step 5: Solve for x
    x = 68,556,153,899,204,616/215,492,553.70
  6. Step 6: Final answer
    x = 318,136,996.95

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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.