Home / 13,580,010.30-20,370,015.45-6,405,556.80

Finding the Fourth Proportional to 13,580,010.30, 20,370,015.45 and 6,405,556.80

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Solution

The fourth proportional to 13,580,010.30, 20,370,015.45 and 6,405,556.80 is: 9,608,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580,010.30 : 20,370,015.45 = 6,405,556.80 : x
  2. Step 2: Convert to fraction form
    13,580,010.30/20,370,015.45 = 6,405,556.80/x
  3. Step 3: Cross multiply
    13,580,010.30x = 20,370,015.45 × 6,405,556.80
  4. Step 4: Simplify right side
    13,580,010.30x = 130,481,290,981,852.55
  5. Step 5: Solve for x
    x = 130,481,290,981,852.55/13,580,010.30
  6. Step 6: Final answer
    x = 9,608,335.20

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1.5x scale

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.