Home / 318,072,808.20-476,829,276.30-215,504,257.80

Finding the Fourth Proportional to 318,072,808.20, 476,829,276.30 and 215,504,257.80

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Solution

The fourth proportional to 318,072,808.20, 476,829,276.30 and 215,504,257.80 is: 323,066,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,072,808.20 : 476,829,276.30 = 215,504,257.80 : x
  2. Step 2: Convert to fraction form
    318,072,808.20/476,829,276.30 = 215,504,257.80/x
  3. Step 3: Cross multiply
    318,072,808.20x = 476,829,276.30 × 215,504,257.80
  4. Step 4: Simplify right side
    318,072,808.20x = 102,758,739,286,342,640
  5. Step 5: Solve for x
    x = 102,758,739,286,342,640/318,072,808.20
  6. Step 6: Final answer
    x = 323,066,721.32

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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.