Finding the Fourth Proportional to 12,048,416.40, 18,086,621.40 and 7,261,510.80
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Solution
The fourth proportional to 12,048,416.40, 18,086,621.40 and 7,261,510.80 is: 10,900,701.99
Step by Step Solution
- Step 1: Write the proportion equation
12,048,416.40 : 18,086,621.40 = 7,261,510.80 : x - Step 2: Convert to fraction form
12,048,416.40/18,086,621.40 = 7,261,510.80/x - Step 3: Cross multiply
12,048,416.40x = 18,086,621.40 × 7,261,510.80 - Step 4: Simplify right side
12,048,416.40x = 131,336,196,631,611.11 - Step 5: Solve for x
x = 131,336,196,631,611.11/12,048,416.40 - Step 6: Final answer
x = 10,900,701.99
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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.