Home / 155,118,021.24-214,062,817.10-85,504,564.64

Finding the Fourth Proportional to 155,118,021.24, 214,062,817.10 and 85,504,564.64

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Solution

The fourth proportional to 155,118,021.24, 214,062,817.10 and 85,504,564.64 is: 117,996,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,021.24 : 214,062,817.10 = 85,504,564.64 : x
  2. Step 2: Convert to fraction form
    155,118,021.24/214,062,817.10 = 85,504,564.64/x
  3. Step 3: Cross multiply
    155,118,021.24x = 214,062,817.10 × 85,504,564.64
  4. Step 4: Simplify right side
    155,118,021.24x = 18,303,347,981,747,448
  5. Step 5: Solve for x
    x = 18,303,347,981,747,448/155,118,021.24
  6. Step 6: Final answer
    x = 117,996,270.42

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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.