Finding the Fourth Proportional to 12,229,695.08, 18,351,915.42 and 4,257,117.80
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Solution
The fourth proportional to 12,229,695.08, 18,351,915.42 and 4,257,117.80 is: 6,388,243.15
Step by Step Solution
- Step 1: Write the proportion equation
12,229,695.08 : 18,351,915.42 = 4,257,117.80 : x - Step 2: Convert to fraction form
12,229,695.08/18,351,915.42 = 4,257,117.80/x - Step 3: Cross multiply
12,229,695.08x = 18,351,915.42 × 4,257,117.80 - Step 4: Simplify right side
12,229,695.08x = 78,126,265,798,576.48 - Step 5: Solve for x
x = 78,126,265,798,576.48/12,229,695.08 - Step 6: Final answer
x = 6,388,243.15
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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.