Finding the Fourth Proportional to 18,490,515.75, 27,739,556.46 and 6,358,403.60
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Solution
The fourth proportional to 18,490,515.75, 27,739,556.46 and 6,358,403.60 is: 9,538,906.21
Step by Step Solution
- Step 1: Write the proportion equation
18,490,515.75 : 27,739,556.46 = 6,358,403.60 : x - Step 2: Convert to fraction form
18,490,515.75/27,739,556.46 = 6,358,403.60/x - Step 3: Cross multiply
18,490,515.75x = 27,739,556.46 × 6,358,403.60 - Step 4: Simplify right side
18,490,515.75x = 176,379,295,518,969.47 - Step 5: Solve for x
x = 176,379,295,518,969.47/18,490,515.75 - Step 6: Final answer
x = 9,538,906.21
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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.