Home / 215,541,000.10-323,311,500.15-172,494,279.10

Finding the Fourth Proportional to 215,541,000.10, 323,311,500.15 and 172,494,279.10

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Solution

The fourth proportional to 215,541,000.10, 323,311,500.15 and 172,494,279.10 is: 258,741,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,541,000.10 : 323,311,500.15 = 172,494,279.10 : x
  2. Step 2: Convert to fraction form
    215,541,000.10/323,311,500.15 = 172,494,279.10/x
  3. Step 3: Cross multiply
    215,541,000.10x = 323,311,500.15 × 172,494,279.10
  4. Step 4: Simplify right side
    215,541,000.10x = 55,769,384,143,113,784
  5. Step 5: Solve for x
    x = 55,769,384,143,113,784/215,541,000.10
  6. Step 6: Final answer
    x = 258,741,418.65

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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.