Finding the Fourth Proportional to 11,475,093.12, 15,835,976.90 and 6,318,639.20
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Solution
The fourth proportional to 11,475,093.12, 15,835,976.90 and 6,318,639.20 is: 8,719,913.94
Step by Step Solution
- Step 1: Write the proportion equation
11,475,093.12 : 15,835,976.90 = 6,318,639.20 : x - Step 2: Convert to fraction form
11,475,093.12/15,835,976.90 = 6,318,639.20/x - Step 3: Cross multiply
11,475,093.12x = 15,835,976.90 × 6,318,639.20 - Step 4: Simplify right side
11,475,093.12x = 100,061,824,410,634.48 - Step 5: Solve for x
x = 100,061,824,410,634.48/11,475,093.12 - Step 6: Final answer
x = 8,719,913.94
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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.