Home / 243,181,470.48-364,809,996.16-81,661,197.84

Finding the Fourth Proportional to 243,181,470.48, 364,809,996.16 and 81,661,197.84

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Solution

The fourth proportional to 243,181,470.48, 364,809,996.16 and 81,661,197.84 is: 122,504,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,181,470.48 : 364,809,996.16 = 81,661,197.84 : x
  2. Step 2: Convert to fraction form
    243,181,470.48/364,809,996.16 = 81,661,197.84/x
  3. Step 3: Cross multiply
    243,181,470.48x = 364,809,996.16 × 81,661,197.84
  4. Step 4: Simplify right side
    243,181,470.48x = 29,790,821,270,431,404
  5. Step 5: Solve for x
    x = 29,790,821,270,431,404/243,181,470.48
  6. Step 6: Final answer
    x = 122,504,486.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.