Finding the Fourth Proportional to 5,158,415.10, 7,738,556.57 and 2,124,126.19
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Solution
The fourth proportional to 5,158,415.10, 7,738,556.57 and 2,124,126.19 is: 3,186,573.85
Step by Step Solution
- Step 1: Write the proportion equation
5,158,415.10 : 7,738,556.57 = 2,124,126.19 : x - Step 2: Convert to fraction form
5,158,415.10/7,738,556.57 = 2,124,126.19/x - Step 3: Cross multiply
5,158,415.10x = 7,738,556.57 × 2,124,126.19 - Step 4: Simplify right side
5,158,415.10x = 16,437,670,683,133.57 - Step 5: Solve for x
x = 16,437,670,683,133.57/5,158,415.10 - Step 6: Final answer
x = 3,186,573.85
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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.