Home / 7,810,878-11,718,187.61-3,259,394.91

Finding the Fourth Proportional to 7,810,878, 11,718,187.61 and 3,259,394.91

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Solution

The fourth proportional to 7,810,878, 11,718,187.61 and 3,259,394.91 is: 4,889,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810,878 : 11,718,187.61 = 3,259,394.91 : x
  2. Step 2: Convert to fraction form
    7,810,878/11,718,187.61 = 3,259,394.91/x
  3. Step 3: Cross multiply
    7,810,878x = 11,718,187.61 × 3,259,394.91
  4. Step 4: Simplify right side
    7,810,878x = 38,194,200,975,571.15
  5. Step 5: Solve for x
    x = 38,194,200,975,571.15/7,810,878
  6. Step 6: Final answer
    x = 4,889,872.94

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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.