Finding the Fourth Proportional to 6,381,678.20, 8,806,772.12 and 3,481,081.97
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Solution
The fourth proportional to 6,381,678.20, 8,806,772.12 and 3,481,081.97 is: 4,803,923.77
Step by Step Solution
- Step 1: Write the proportion equation
6,381,678.20 : 8,806,772.12 = 3,481,081.97 : x - Step 2: Convert to fraction form
6,381,678.20/8,806,772.12 = 3,481,081.97/x - Step 3: Cross multiply
6,381,678.20x = 8,806,772.12 × 3,481,081.97 - Step 4: Simplify right side
6,381,678.20x = 30,657,095,579,391.41 - Step 5: Solve for x
x = 30,657,095,579,391.41/6,381,678.20 - Step 6: Final answer
x = 4,803,923.77
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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.