Finding the Fourth Proportional to 5,390,469.70, 8,085,704.55 and 2,556,117.70
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Solution
The fourth proportional to 5,390,469.70, 8,085,704.55 and 2,556,117.70 is: 3,834,176.55
Step by Step Solution
- Step 1: Write the proportion equation
5,390,469.70 : 8,085,704.55 = 2,556,117.70 : x - Step 2: Convert to fraction form
5,390,469.70/8,085,704.55 = 2,556,117.70/x - Step 3: Cross multiply
5,390,469.70x = 8,085,704.55 × 2,556,117.70 - Step 4: Simplify right side
5,390,469.70x = 20,668,012,517,225.54 - Step 5: Solve for x
x = 20,668,012,517,225.54/5,390,469.70 - Step 6: Final answer
x = 3,834,176.55
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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.