Finding the Fourth Proportional to 23,102,109.21, 31,881,286.70 and 12,647,949.10
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Solution
The fourth proportional to 23,102,109.21, 31,881,286.70 and 12,647,949.10 is: 17,454,375.61
Step by Step Solution
- Step 1: Write the proportion equation
23,102,109.21 : 31,881,286.70 = 12,647,949.10 : x - Step 2: Convert to fraction form
23,102,109.21/31,881,286.70 = 12,647,949.10/x - Step 3: Cross multiply
23,102,109.21x = 31,881,286.70 × 12,647,949.10 - Step 4: Simplify right side
23,102,109.21x = 403,232,891,424,106.94 - Step 5: Solve for x
x = 403,232,891,424,106.94/23,102,109.21 - Step 6: Final answer
x = 17,454,375.61
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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.