Home / 155,641,241.59-214,789,481.12-85,080,751.22

Finding the Fourth Proportional to 155,641,241.59, 214,789,481.12 and 85,080,751.22

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Solution

The fourth proportional to 155,641,241.59, 214,789,481.12 and 85,080,751.22 is: 117,413,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,641,241.59 : 214,789,481.12 = 85,080,751.22 : x
  2. Step 2: Convert to fraction form
    155,641,241.59/214,789,481.12 = 85,080,751.22/x
  3. Step 3: Cross multiply
    155,641,241.59x = 214,789,481.12 × 85,080,751.22
  4. Step 4: Simplify right side
    155,641,241.59x = 18,274,450,407,843,608
  5. Step 5: Solve for x
    x = 18,274,450,407,843,608/155,641,241.59
  6. Step 6: Final answer
    x = 117,413,933.62

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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.