Finding the Fourth Proportional to 8,239,145.40, 12,358,718.10 and 2,559,324.60
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Solution
The fourth proportional to 8,239,145.40, 12,358,718.10 and 2,559,324.60 is: 3,838,986.90
Step by Step Solution
- Step 1: Write the proportion equation
8,239,145.40 : 12,358,718.10 = 2,559,324.60 : x - Step 2: Convert to fraction form
8,239,145.40/12,358,718.10 = 2,559,324.60/x - Step 3: Cross multiply
8,239,145.40x = 12,358,718.10 × 2,559,324.60 - Step 4: Simplify right side
8,239,145.40x = 31,629,971,257,795.26 - Step 5: Solve for x
x = 31,629,971,257,795.26/8,239,145.40 - Step 6: Final answer
x = 3,838,986.90
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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.