Finding the Fourth Proportional to 21,691,044.09, 29,934,191.76 and 11,901,485.70
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Solution
The fourth proportional to 21,691,044.09, 29,934,191.76 and 11,901,485.70 is: 16,424,352.54
Step by Step Solution
- Step 1: Write the proportion equation
21,691,044.09 : 29,934,191.76 = 11,901,485.70 : x - Step 2: Convert to fraction form
21,691,044.09/29,934,191.76 = 11,901,485.70/x - Step 3: Cross multiply
21,691,044.09x = 29,934,191.76 × 11,901,485.70 - Step 4: Simplify right side
21,691,044.09x = 356,261,355,172,697.81 - Step 5: Solve for x
x = 356,261,355,172,697.81/21,691,044.09 - Step 6: Final answer
x = 16,424,352.54
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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.