Finding the Fourth Proportional to 10,285,286.06, 14,193,833.09 and 5,639,059.96
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Solution
The fourth proportional to 10,285,286.06, 14,193,833.09 and 5,639,059.96 is: 7,781,978.58
Step by Step Solution
- Step 1: Write the proportion equation
10,285,286.06 : 14,193,833.09 = 5,639,059.96 : x - Step 2: Convert to fraction form
10,285,286.06/14,193,833.09 = 5,639,059.96/x - Step 3: Cross multiply
10,285,286.06x = 14,193,833.09 × 5,639,059.96 - Step 4: Simplify right side
10,285,286.06x = 80,039,875,793,062.19 - Step 5: Solve for x
x = 80,039,875,793,062.19/10,285,286.06 - Step 6: Final answer
x = 7,781,978.58
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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.