Home / 6,909,381-9,534,945.78-3,853,597.68

Finding the Fourth Proportional to 6,909,381, 9,534,945.78 and 3,853,597.68

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Solution

The fourth proportional to 6,909,381, 9,534,945.78 and 3,853,597.68 is: 5,317,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909,381 : 9,534,945.78 = 3,853,597.68 : x
  2. Step 2: Convert to fraction form
    6,909,381/9,534,945.78 = 3,853,597.68/x
  3. Step 3: Cross multiply
    6,909,381x = 9,534,945.78 × 3,853,597.68
  4. Step 4: Simplify right side
    6,909,381x = 36,743,844,936,733.79
  5. Step 5: Solve for x
    x = 36,743,844,936,733.79/6,909,381
  6. Step 6: Final answer
    x = 5,317,964.80

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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.