Finding the Fourth Proportional to 6,877,576.20, 9,491,141.16 and 3,780,437.70
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Solution
The fourth proportional to 6,877,576.20, 9,491,141.16 and 3,780,437.70 is: 5,217,051.30
Step by Step Solution
- Step 1: Write the proportion equation
6,877,576.20 : 9,491,141.16 = 3,780,437.70 : x - Step 2: Convert to fraction form
6,877,576.20/9,491,141.16 = 3,780,437.70/x - Step 3: Cross multiply
6,877,576.20x = 9,491,141.16 × 3,780,437.70 - Step 4: Simplify right side
6,877,576.20x = 35,880,667,857,285.73 - Step 5: Solve for x
x = 35,880,667,857,285.73/6,877,576.20 - Step 6: Final answer
x = 5,217,051.30
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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.