Home / 155,641,242.09-214,789,481.81-85,080,751.72

Finding the Fourth Proportional to 155,641,242.09, 214,789,481.81 and 85,080,751.72

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Solution

The fourth proportional to 155,641,242.09, 214,789,481.81 and 85,080,751.72 is: 117,413,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,641,242.09 : 214,789,481.81 = 85,080,751.72 : x
  2. Step 2: Convert to fraction form
    155,641,242.09/214,789,481.81 = 85,080,751.72/x
  3. Step 3: Cross multiply
    155,641,242.09x = 214,789,481.81 × 85,080,751.72
  4. Step 4: Simplify right side
    155,641,242.09x = 18,274,450,573,944,068
  5. Step 5: Solve for x
    x = 18,274,450,573,944,068/155,641,242.09
  6. Step 6: Final answer
    x = 117,413,934.31

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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.