Finding the Fourth Proportional to 3,889,015.58, 5,366,841.80 and 2,146,685.38
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Solution
The fourth proportional to 3,889,015.58, 5,366,841.80 and 2,146,685.38 is: 2,962,425.99
Step by Step Solution
- Step 1: Write the proportion equation
3,889,015.58 : 5,366,841.80 = 2,146,685.38 : x - Step 2: Convert to fraction form
3,889,015.58/5,366,841.80 = 2,146,685.38/x - Step 3: Cross multiply
3,889,015.58x = 5,366,841.80 × 2,146,685.38 - Step 4: Simplify right side
3,889,015.58x = 11,520,920,828,832.88 - Step 5: Solve for x
x = 11,520,920,828,832.88/3,889,015.58 - Step 6: Final answer
x = 2,962,425.99
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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.