Home / 13,825,364.80-20,738,047.20-12,985,556.80

Finding the Fourth Proportional to 13,825,364.80, 20,738,047.20 and 12,985,556.80

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Solution

The fourth proportional to 13,825,364.80, 20,738,047.20 and 12,985,556.80 is: 19,478,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825,364.80 : 20,738,047.20 = 12,985,556.80 : x
  2. Step 2: Convert to fraction form
    13,825,364.80/20,738,047.20 = 12,985,556.80/x
  3. Step 3: Cross multiply
    13,825,364.80x = 20,738,047.20 × 12,985,556.80
  4. Step 4: Simplify right side
    13,825,364.80x = 269,295,089,836,680.97
  5. Step 5: Solve for x
    x = 269,295,089,836,680.97/13,825,364.80
  6. Step 6: Final answer
    x = 19,478,335.20

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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.