Home / 355,453,028.69-490,526,954.19-198,820,135.26

Finding the Fourth Proportional to 355,453,028.69, 490,526,954.19 and 198,820,135.26

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Solution

The fourth proportional to 355,453,028.69, 490,526,954.19 and 198,820,135.26 is: 274,372,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,453,028.69 : 490,526,954.19 = 198,820,135.26 : x
  2. Step 2: Convert to fraction form
    355,453,028.69/490,526,954.19 = 198,820,135.26/x
  3. Step 3: Cross multiply
    355,453,028.69x = 490,526,954.19 × 198,820,135.26
  4. Step 4: Simplify right side
    355,453,028.69x = 97,526,635,380,731,616
  5. Step 5: Solve for x
    x = 97,526,635,380,731,616/355,453,028.69
  6. Step 6: Final answer
    x = 274,372,779.27

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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.