Finding the Fourth Proportional to 21,548,391.70, 29,737,408.72 and 11,759,466.42
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Solution
The fourth proportional to 21,548,391.70, 29,737,408.72 and 11,759,466.42 is: 16,228,406.47
Step by Step Solution
- Step 1: Write the proportion equation
21,548,391.70 : 29,737,408.72 = 11,759,466.42 : x - Step 2: Convert to fraction form
21,548,391.70/29,737,408.72 = 11,759,466.42/x - Step 3: Cross multiply
21,548,391.70x = 29,737,408.72 × 11,759,466.42 - Step 4: Simplify right side
21,548,391.70x = 349,696,059,260,655.19 - Step 5: Solve for x
x = 349,696,059,260,655.19/21,548,391.70 - Step 6: Final answer
x = 16,228,406.47
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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.