Finding the Fourth Proportional to 7,891,371.54, 11,837,516.58 and 2,212,038.72
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Solution
The fourth proportional to 7,891,371.54, 11,837,516.58 and 2,212,038.72 is: 3,318,186.82
Step by Step Solution
- Step 1: Write the proportion equation
7,891,371.54 : 11,837,516.58 = 2,212,038.72 : x - Step 2: Convert to fraction form
7,891,371.54/11,837,516.58 = 2,212,038.72/x - Step 3: Cross multiply
7,891,371.54x = 11,837,516.58 × 2,212,038.72 - Step 4: Simplify right side
7,891,371.54x = 26,185,045,023,601.98 - Step 5: Solve for x
x = 26,185,045,023,601.98/7,891,371.54 - Step 6: Final answer
x = 3,318,186.82
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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.