Home / 155,641,239.59-214,789,478.36-85,080,749.22

Finding the Fourth Proportional to 155,641,239.59, 214,789,478.36 and 85,080,749.22

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Solution

The fourth proportional to 155,641,239.59, 214,789,478.36 and 85,080,749.22 is: 117,413,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,641,239.59 : 214,789,478.36 = 85,080,749.22 : x
  2. Step 2: Convert to fraction form
    155,641,239.59/214,789,478.36 = 85,080,749.22/x
  3. Step 3: Cross multiply
    155,641,239.59x = 214,789,478.36 × 85,080,749.22
  4. Step 4: Simplify right side
    155,641,239.59x = 18,274,449,743,016,372
  5. Step 5: Solve for x
    x = 18,274,449,743,016,372/155,641,239.59
  6. Step 6: Final answer
    x = 117,413,930.86

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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.