Home / 321,338,021.98-443,415,484.38-180,214,971.58

Finding the Fourth Proportional to 321,338,021.98, 443,415,484.38 and 180,214,971.58

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Solution

The fourth proportional to 321,338,021.98, 443,415,484.38 and 180,214,971.58 is: 248,679,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,338,021.98 : 443,415,484.38 = 180,214,971.58 : x
  2. Step 2: Convert to fraction form
    321,338,021.98/443,415,484.38 = 180,214,971.58/x
  3. Step 3: Cross multiply
    321,338,021.98x = 443,415,484.38 × 180,214,971.58
  4. Step 4: Simplify right side
    321,338,021.98x = 79,910,108,915,673,632
  5. Step 5: Solve for x
    x = 79,910,108,915,673,632/321,338,021.98
  6. Step 6: Final answer
    x = 248,679,283.03

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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.