Finding the Fourth Proportional to 18,341,696.40, 27,447,226.20 and 15,971,571.60
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Solution
The fourth proportional to 18,341,696.40, 27,447,226.20 and 15,971,571.60 is: 23,900,479.48
Step by Step Solution
- Step 1: Write the proportion equation
18,341,696.40 : 27,447,226.20 = 15,971,571.60 : x - Step 2: Convert to fraction form
18,341,696.40/27,447,226.20 = 15,971,571.60/x - Step 3: Cross multiply
18,341,696.40x = 27,447,226.20 × 15,971,571.60 - Step 4: Simplify right side
18,341,696.40x = 438,375,338,474,695.88 - Step 5: Solve for x
x = 438,375,338,474,695.88/18,341,696.40 - Step 6: Final answer
x = 23,900,479.48
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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.