Finding the Fourth Proportional to 4,920,936.32, 6,791,059.84 and 2,855,792.96
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Solution
The fourth proportional to 4,920,936.32, 6,791,059.84 and 2,855,792.96 is: 3,941,091.62
Step by Step Solution
- Step 1: Write the proportion equation
4,920,936.32 : 6,791,059.84 = 2,855,792.96 : x - Step 2: Convert to fraction form
4,920,936.32/6,791,059.84 = 2,855,792.96/x - Step 3: Cross multiply
4,920,936.32x = 6,791,059.84 × 2,855,792.96 - Step 4: Simplify right side
4,920,936.32x = 19,393,860,882,010.73 - Step 5: Solve for x
x = 19,393,860,882,010.73/4,920,936.32 - Step 6: Final answer
x = 3,941,091.62
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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.