Finding the Fourth Proportional to 21,548,421.80, 29,737,450.08 and 11,759,496.49
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Solution
The fourth proportional to 21,548,421.80, 29,737,450.08 and 11,759,496.49 is: 16,228,447.86
Step by Step Solution
- Step 1: Write the proportion equation
21,548,421.80 : 29,737,450.08 = 11,759,496.49 : x - Step 2: Convert to fraction form
21,548,421.80/29,737,450.08 = 11,759,496.49/x - Step 3: Cross multiply
21,548,421.80x = 29,737,450.08 × 11,759,496.49 - Step 4: Simplify right side
21,548,421.80x = 349,697,439,629,825.44 - Step 5: Solve for x
x = 349,697,439,629,825.44/21,548,421.80 - Step 6: Final answer
x = 16,228,447.86
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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.