Finding the Fourth Proportional to 13,920,754.17, 19,212,951.18 and 8,119,535.92
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Solution
The fourth proportional to 13,920,754.17, 19,212,951.18 and 8,119,535.92 is: 11,206,307.17
Step by Step Solution
- Step 1: Write the proportion equation
13,920,754.17 : 19,212,951.18 = 8,119,535.92 : x - Step 2: Convert to fraction form
13,920,754.17/19,212,951.18 = 8,119,535.92/x - Step 3: Cross multiply
13,920,754.17x = 19,212,951.18 × 8,119,535.92 - Step 4: Simplify right side
13,920,754.17x = 156,000,247,235,216.38 - Step 5: Solve for x
x = 156,000,247,235,216.38/13,920,754.17 - Step 6: Final answer
x = 11,206,307.17
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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.