Home / 166,060,885.11-248,994,958.68-78,621,668.03

Finding the Fourth Proportional to 166,060,885.11, 248,994,958.68 and 78,621,668.03

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Solution

The fourth proportional to 166,060,885.11, 248,994,958.68 and 78,621,668.03 is: 117,886,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,060,885.11 : 248,994,958.68 = 78,621,668.03 : x
  2. Step 2: Convert to fraction form
    166,060,885.11/248,994,958.68 = 78,621,668.03/x
  3. Step 3: Cross multiply
    166,060,885.11x = 248,994,958.68 × 78,621,668.03
  4. Step 4: Simplify right side
    166,060,885.11x = 19,576,398,981,237,556
  5. Step 5: Solve for x
    x = 19,576,398,981,237,556/166,060,885.11
  6. Step 6: Final answer
    x = 117,886,876.06

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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.