Finding the Fourth Proportional to 7,979,587.70, 11,971,062.80 and 2,587,817.70
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Solution
The fourth proportional to 7,979,587.70, 11,971,062.80 and 2,587,817.70 is: 3,882,271.79
Step by Step Solution
- Step 1: Write the proportion equation
7,979,587.70 : 11,971,062.80 = 2,587,817.70 : x - Step 2: Convert to fraction form
7,979,587.70/11,971,062.80 = 2,587,817.70/x - Step 3: Cross multiply
7,979,587.70x = 11,971,062.80 × 2,587,817.70 - Step 4: Simplify right side
7,979,587.70x = 30,978,928,201,651.56 - Step 5: Solve for x
x = 30,978,928,201,651.56/7,979,587.70 - Step 6: Final answer
x = 3,882,271.79
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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.