Finding the Fourth Proportional to 19,381,857.40, 29,072,786.10 and 6,616,775.80
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Solution
The fourth proportional to 19,381,857.40, 29,072,786.10 and 6,616,775.80 is: 9,925,163.70
Step by Step Solution
- Step 1: Write the proportion equation
19,381,857.40 : 29,072,786.10 = 6,616,775.80 : x - Step 2: Convert to fraction form
19,381,857.40/29,072,786.10 = 6,616,775.80/x - Step 3: Cross multiply
19,381,857.40x = 29,072,786.10 × 6,616,775.80 - Step 4: Simplify right side
19,381,857.40x = 192,368,107,505,056.38 - Step 5: Solve for x
x = 192,368,107,505,056.38/19,381,857.40 - Step 6: Final answer
x = 9,925,163.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.