Finding the Fourth Proportional to 21,548,421.09, 29,737,449.11 and 11,759,495.82
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Solution
The fourth proportional to 21,548,421.09, 29,737,449.11 and 11,759,495.82 is: 16,228,446.94
Step by Step Solution
- Step 1: Write the proportion equation
21,548,421.09 : 29,737,449.11 = 11,759,495.82 : x - Step 2: Convert to fraction form
21,548,421.09/29,737,449.11 = 11,759,495.82/x - Step 3: Cross multiply
21,548,421.09x = 29,737,449.11 × 11,759,495.82 - Step 4: Simplify right side
21,548,421.09x = 349,697,408,424,391.06 - Step 5: Solve for x
x = 349,697,408,424,391.06/21,548,421.09 - Step 6: Final answer
x = 16,228,446.94
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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.