Home / 155,409,146-214,458,988.44-85,793,028.56

Finding the Fourth Proportional to 155,409,146, 214,458,988.44 and 85,793,028.56

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Solution

The fourth proportional to 155,409,146, 214,458,988.44 and 85,793,028.56 is: 118,391,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,146 : 214,458,988.44 = 85,793,028.56 : x
  2. Step 2: Convert to fraction form
    155,409,146/214,458,988.44 = 85,793,028.56/x
  3. Step 3: Cross multiply
    155,409,146x = 214,458,988.44 × 85,793,028.56
  4. Step 4: Simplify right side
    155,409,146x = 18,399,086,120,181,632
  5. Step 5: Solve for x
    x = 18,399,086,120,181,632/155,409,146
  6. Step 6: Final answer
    x = 118,391,269.71

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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.