Finding the Fourth Proportional to 10,378,405.87, 15,567,664.39 and 6,806,790.05
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Solution
The fourth proportional to 10,378,405.87, 15,567,664.39 and 6,806,790.05 is: 10,210,221.52
Step by Step Solution
- Step 1: Write the proportion equation
10,378,405.87 : 15,567,664.39 = 6,806,790.05 : x - Step 2: Convert to fraction form
10,378,405.87/15,567,664.39 = 6,806,790.05/x - Step 3: Cross multiply
10,378,405.87x = 15,567,664.39 × 6,806,790.05 - Step 4: Simplify right side
10,378,405.87x = 105,965,822,976,736.02 - Step 5: Solve for x
x = 105,965,822,976,736.02/10,378,405.87 - Step 6: Final answer
x = 10,210,221.52
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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.