Finding the Fourth Proportional to 5,197,724.42, 7,797,121.38 and 1,961,987.60
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Solution
The fourth proportional to 5,197,724.42, 7,797,121.38 and 1,961,987.60 is: 2,943,183.25
Step by Step Solution
- Step 1: Write the proportion equation
5,197,724.42 : 7,797,121.38 = 1,961,987.60 : x - Step 2: Convert to fraction form
5,197,724.42/7,797,121.38 = 1,961,987.60/x - Step 3: Cross multiply
5,197,724.42x = 7,797,121.38 × 1,961,987.60 - Step 4: Simplify right side
5,197,724.42x = 15,297,855,414,459.34 - Step 5: Solve for x
x = 15,297,855,414,459.34/5,197,724.42 - Step 6: Final answer
x = 2,943,183.25
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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.