Finding the Fourth Proportional to 18,441,873.70, 27,662,810.55 and 8,364,177.70
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Solution
The fourth proportional to 18,441,873.70, 27,662,810.55 and 8,364,177.70 is: 12,546,266.55
Step by Step Solution
- Step 1: Write the proportion equation
18,441,873.70 : 27,662,810.55 = 8,364,177.70 : x - Step 2: Convert to fraction form
18,441,873.70/27,662,810.55 = 8,364,177.70/x - Step 3: Cross multiply
18,441,873.70x = 27,662,810.55 × 8,364,177.70 - Step 4: Simplify right side
18,441,873.70x = 231,376,663,121,634.75 - Step 5: Solve for x
x = 231,376,663,121,634.75/18,441,873.70 - Step 6: Final answer
x = 12,546,266.55
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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.