Finding the Fourth Proportional to 21,481,893.07, 29,645,654.00 and 13,226,717.79
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Solution
The fourth proportional to 21,481,893.07, 29,645,654.00 and 13,226,717.79 is: 18,253,265.57
Step by Step Solution
- Step 1: Write the proportion equation
21,481,893.07 : 29,645,654.00 = 13,226,717.79 : x - Step 2: Convert to fraction form
21,481,893.07/29,645,654.00 = 13,226,717.79/x - Step 3: Cross multiply
21,481,893.07x = 29,645,654.00 × 13,226,717.79 - Step 4: Simplify right side
21,481,893.07x = 392,114,699,091,851.06 - Step 5: Solve for x
x = 392,114,699,091,851.06/21,481,893.07 - Step 6: Final answer
x = 18,253,265.57
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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.