Home / 7,078,642.25-10,618,198.47-1,961,123.60

Finding the Fourth Proportional to 7,078,642.25, 10,618,198.47 and 1,961,123.60

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Solution

The fourth proportional to 7,078,642.25, 10,618,198.47 and 1,961,123.60 is: 2,941,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,642.25 : 10,618,198.47 = 1,961,123.60 : x
  2. Step 2: Convert to fraction form
    7,078,642.25/10,618,198.47 = 1,961,123.60/x
  3. Step 3: Cross multiply
    7,078,642.25x = 10,618,198.47 × 1,961,123.60
  4. Step 4: Simplify right side
    7,078,642.25x = 20,823,599,635,546.39
  5. Step 5: Solve for x
    x = 20,823,599,635,546.39/7,078,642.25
  6. Step 6: Final answer
    x = 2,941,750.54

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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.