Finding the Fourth Proportional to 15,255,427.68, 21,052,644.84 and 8,286,240.96
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Solution
The fourth proportional to 15,255,427.68, 21,052,644.84 and 8,286,240.96 is: 11,435,096.52
Step by Step Solution
- Step 1: Write the proportion equation
15,255,427.68 : 21,052,644.84 = 8,286,240.96 : x - Step 2: Convert to fraction form
15,255,427.68/21,052,644.84 = 8,286,240.96/x - Step 3: Cross multiply
15,255,427.68x = 21,052,644.84 × 8,286,240.96 - Step 4: Simplify right side
15,255,427.68x = 174,447,287,989,540.66 - Step 5: Solve for x
x = 174,447,287,989,540.66/15,255,427.68 - Step 6: Final answer
x = 11,435,096.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.