Finding the Fourth Proportional to 5,197,723.91, 7,797,120.62 and 1,961,987.09
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Solution
The fourth proportional to 5,197,723.91, 7,797,120.62 and 1,961,987.09 is: 2,943,182.49
Step by Step Solution
- Step 1: Write the proportion equation
5,197,723.91 : 7,797,120.62 = 1,961,987.09 : x - Step 2: Convert to fraction form
5,197,723.91/7,797,120.62 = 1,961,987.09/x - Step 3: Cross multiply
5,197,723.91x = 7,797,120.62 × 1,961,987.09 - Step 4: Simplify right side
5,197,723.91x = 15,297,850,020,010.56 - Step 5: Solve for x
x = 15,297,850,020,010.56/5,197,723.91 - Step 6: Final answer
x = 2,943,182.49
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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.