Home / 15,285,216.51-21,093,766.18-8,315,933.67

Finding the Fourth Proportional to 15,285,216.51, 21,093,766.18 and 8,315,933.67

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Solution

The fourth proportional to 15,285,216.51, 21,093,766.18 and 8,315,933.67 is: 11,476,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,216.51 : 21,093,766.18 = 8,315,933.67 : x
  2. Step 2: Convert to fraction form
    15,285,216.51/21,093,766.18 = 8,315,933.67/x
  3. Step 3: Cross multiply
    15,285,216.51x = 21,093,766.18 × 8,315,933.67
  4. Step 4: Simplify right side
    15,285,216.51x = 175,414,360,382,579.44
  5. Step 5: Solve for x
    x = 175,414,360,382,579.44/15,285,216.51
  6. Step 6: Final answer
    x = 11,476,079.54

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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.