Home / 5,389,990.80-8,084,986.20-2,555,638.80

Finding the Fourth Proportional to 5,389,990.80, 8,084,986.20 and 2,555,638.80

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Solution

The fourth proportional to 5,389,990.80, 8,084,986.20 and 2,555,638.80 is: 3,833,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389,990.80 : 8,084,986.20 = 2,555,638.80 : x
  2. Step 2: Convert to fraction form
    5,389,990.80/8,084,986.20 = 2,555,638.80/x
  3. Step 3: Cross multiply
    5,389,990.80x = 8,084,986.20 × 2,555,638.80
  4. Step 4: Simplify right side
    5,389,990.80x = 20,662,304,430,184.56
  5. Step 5: Solve for x
    x = 20,662,304,430,184.56/5,389,990.80
  6. Step 6: Final answer
    x = 3,833,458.20

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Double scale
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Similar ratio
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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.