Finding the Fourth Proportional to 20,369,622.24, 28,109,517.60 and 11,202,264
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Solution
The fourth proportional to 20,369,622.24, 28,109,517.60 and 11,202,264 is: 15,458,815.75
Step by Step Solution
- Step 1: Write the proportion equation
20,369,622.24 : 28,109,517.60 = 11,202,264 : x - Step 2: Convert to fraction form
20,369,622.24/28,109,517.60 = 11,202,264/x - Step 3: Cross multiply
20,369,622.24x = 28,109,517.60 × 11,202,264 - Step 4: Simplify right side
20,369,622.24x = 314,890,237,067,846.44 - Step 5: Solve for x
x = 314,890,237,067,846.44/20,369,622.24 - Step 6: Final answer
x = 15,458,815.75
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1.5x scale
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.