Finding the Fourth Proportional to 5,217,416.40, 7,825,735.80 and 2,183,998.80
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Solution
The fourth proportional to 5,217,416.40, 7,825,735.80 and 2,183,998.80 is: 3,275,835.45
Step by Step Solution
- Step 1: Write the proportion equation
5,217,416.40 : 7,825,735.80 = 2,183,998.80 : x - Step 2: Convert to fraction form
5,217,416.40/7,825,735.80 = 2,183,998.80/x - Step 3: Cross multiply
5,217,416.40x = 7,825,735.80 × 2,183,998.80 - Step 4: Simplify right side
5,217,416.40x = 17,091,397,596,317.04 - Step 5: Solve for x
x = 17,091,397,596,317.04/5,217,416.40 - Step 6: Final answer
x = 3,275,835.45
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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.