Finding the Fourth Proportional to 7,920,696.18, 11,882,385.57 and 2,731,896.78
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Solution
The fourth proportional to 7,920,696.18, 11,882,385.57 and 2,731,896.78 is: 4,098,307.79
Step by Step Solution
- Step 1: Write the proportion equation
7,920,696.18 : 11,882,385.57 = 2,731,896.78 : x - Step 2: Convert to fraction form
7,920,696.18/11,882,385.57 = 2,731,896.78/x - Step 3: Cross multiply
7,920,696.18x = 11,882,385.57 × 2,731,896.78 - Step 4: Simplify right side
7,920,696.18x = 32,461,450,877,401.46 - Step 5: Solve for x
x = 32,461,450,877,401.46/7,920,696.18 - Step 6: Final answer
x = 4,098,307.79
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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.