Finding the Fourth Proportional to 18,144,742.36, 27,207,663 and 8,557,546.72
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Solution
The fourth proportional to 18,144,742.36, 27,207,663 and 8,557,546.72 is: 12,831,862.95
Step by Step Solution
- Step 1: Write the proportion equation
18,144,742.36 : 27,207,663 = 8,557,546.72 : x - Step 2: Convert to fraction form
18,144,742.36/27,207,663 = 8,557,546.72/x - Step 3: Cross multiply
18,144,742.36x = 27,207,663 × 8,557,546.72 - Step 4: Simplify right side
18,144,742.36x = 232,830,847,264,515.38 - Step 5: Solve for x
x = 232,830,847,264,515.38/18,144,742.36 - Step 6: Final answer
x = 12,831,862.95
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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.