Home / 321,131,556.78-443,126,005.11-178,073,722.14

Finding the Fourth Proportional to 321,131,556.78, 443,126,005.11 and 178,073,722.14

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Solution

The fourth proportional to 321,131,556.78, 443,126,005.11 and 178,073,722.14 is: 245,722,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,131,556.78 : 443,126,005.11 = 178,073,722.14 : x
  2. Step 2: Convert to fraction form
    321,131,556.78/443,126,005.11 = 178,073,722.14/x
  3. Step 3: Cross multiply
    321,131,556.78x = 443,126,005.11 × 178,073,722.14
  4. Step 4: Simplify right side
    321,131,556.78x = 78,909,097,106,966,352
  5. Step 5: Solve for x
    x = 78,909,097,106,966,352/321,131,556.78
  6. Step 6: Final answer
    x = 245,722,027.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.