Home / 15,285,169.63-21,093,701.34-8,315,886.80

Finding the Fourth Proportional to 15,285,169.63, 21,093,701.34 and 8,315,886.80

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Solution

The fourth proportional to 15,285,169.63, 21,093,701.34 and 8,315,886.80 is: 11,476,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,169.63 : 21,093,701.34 = 8,315,886.80 : x
  2. Step 2: Convert to fraction form
    15,285,169.63/21,093,701.34 = 8,315,886.80/x
  3. Step 3: Cross multiply
    15,285,169.63x = 21,093,701.34 × 8,315,886.80
  4. Step 4: Simplify right side
    15,285,169.63x = 175,412,832,620,367.16
  5. Step 5: Solve for x
    x = 175,412,832,620,367.16/15,285,169.63
  6. Step 6: Final answer
    x = 11,476,014.78

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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.