Finding the Fourth Proportional to 3,927,990.44, 5,421,370.86 and 2,458,580.36
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Solution
The fourth proportional to 3,927,990.44, 5,421,370.86 and 2,458,580.36 is: 3,393,306.61
Step by Step Solution
- Step 1: Write the proportion equation
3,927,990.44 : 5,421,370.86 = 2,458,580.36 : x - Step 2: Convert to fraction form
3,927,990.44/5,421,370.86 = 2,458,580.36/x - Step 3: Cross multiply
3,927,990.44x = 5,421,370.86 × 2,458,580.36 - Step 4: Simplify right side
3,927,990.44x = 13,328,875,920,672.31 - Step 5: Solve for x
x = 13,328,875,920,672.31/3,927,990.44 - Step 6: Final answer
x = 3,393,306.61
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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.