Home / 318,072,815.70-476,829,287.55-215,504,265.30

Finding the Fourth Proportional to 318,072,815.70, 476,829,287.55 and 215,504,265.30

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Solution

The fourth proportional to 318,072,815.70, 476,829,287.55 and 215,504,265.30 is: 323,066,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,072,815.70 : 476,829,287.55 = 215,504,265.30 : x
  2. Step 2: Convert to fraction form
    318,072,815.70/476,829,287.55 = 215,504,265.30/x
  3. Step 3: Cross multiply
    318,072,815.70x = 476,829,287.55 × 215,504,265.30
  4. Step 4: Simplify right side
    318,072,815.70x = 102,758,745,286,985,200
  5. Step 5: Solve for x
    x = 102,758,745,286,985,200/318,072,815.70
  6. Step 6: Final answer
    x = 323,066,732.57

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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.