Finding the Fourth Proportional to 4,374,003.70, 6,561,005.55 and 3,311,121.70
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Solution
The fourth proportional to 4,374,003.70, 6,561,005.55 and 3,311,121.70 is: 4,966,682.55
Step by Step Solution
- Step 1: Write the proportion equation
4,374,003.70 : 6,561,005.55 = 3,311,121.70 : x - Step 2: Convert to fraction form
4,374,003.70/6,561,005.55 = 3,311,121.70/x - Step 3: Cross multiply
4,374,003.70x = 6,561,005.55 × 3,311,121.70 - Step 4: Simplify right side
4,374,003.70x = 21,724,287,850,425.44 - Step 5: Solve for x
x = 21,724,287,850,425.44/4,374,003.70 - Step 6: Final answer
x = 4,966,682.55
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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.