Home / 318,531,126.66-477,309,961.89-214,515,722.67

Finding the Fourth Proportional to 318,531,126.66, 477,309,961.89 and 214,515,722.67

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Solution

The fourth proportional to 318,531,126.66, 477,309,961.89 and 214,515,722.67 is: 321,445,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,531,126.66 : 477,309,961.89 = 214,515,722.67 : x
  2. Step 2: Convert to fraction form
    318,531,126.66/477,309,961.89 = 214,515,722.67/x
  3. Step 3: Cross multiply
    318,531,126.66x = 477,309,961.89 × 214,515,722.67
  4. Step 4: Simplify right side
    318,531,126.66x = 102,390,491,412,423,504
  5. Step 5: Solve for x
    x = 102,390,491,412,423,504/318,531,126.66
  6. Step 6: Final answer
    x = 321,445,795.54

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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.