Finding the Fourth Proportional to 5,470,576.79, 8,198,530.22 and 4,257,618.09
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Solution
The fourth proportional to 5,470,576.79, 8,198,530.22 and 4,257,618.09 is: 6,380,718.51
Step by Step Solution
- Step 1: Write the proportion equation
5,470,576.79 : 8,198,530.22 = 4,257,618.09 : x - Step 2: Convert to fraction form
5,470,576.79/8,198,530.22 = 4,257,618.09/x - Step 3: Cross multiply
5,470,576.79x = 8,198,530.22 × 4,257,618.09 - Step 4: Simplify right side
5,470,576.79x = 34,906,210,555,983.23 - Step 5: Solve for x
x = 34,906,210,555,983.23/5,470,576.79 - Step 6: Final answer
x = 6,380,718.51
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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.