Home / 7,858,665.76-10,839,112.90-6,939,272.84

Finding the Fourth Proportional to 7,858,665.76, 10,839,112.90 and 6,939,272.84

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Solution

The fourth proportional to 7,858,665.76, 10,839,112.90 and 6,939,272.84 is: 9,571,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858,665.76 : 10,839,112.90 = 6,939,272.84 : x
  2. Step 2: Convert to fraction form
    7,858,665.76/10,839,112.90 = 6,939,272.84/x
  3. Step 3: Cross multiply
    7,858,665.76x = 10,839,112.90 × 6,939,272.84
  4. Step 4: Simplify right side
    7,858,665.76x = 75,215,561,756,663.64
  5. Step 5: Solve for x
    x = 75,215,561,756,663.64/7,858,665.76
  6. Step 6: Final answer
    x = 9,571,034.58

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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.