Finding the Fourth Proportional to 5,487,905.70, 8,231,858.55 and 5,382,929.70
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Solution
The fourth proportional to 5,487,905.70, 8,231,858.55 and 5,382,929.70 is: 8,074,394.55
Step by Step Solution
- Step 1: Write the proportion equation
5,487,905.70 : 8,231,858.55 = 5,382,929.70 : x - Step 2: Convert to fraction form
5,487,905.70/8,231,858.55 = 5,382,929.70/x - Step 3: Cross multiply
5,487,905.70x = 8,231,858.55 × 5,382,929.70 - Step 4: Simplify right side
5,487,905.70x = 44,311,515,874,993.94 - Step 5: Solve for x
x = 44,311,515,874,993.94/5,487,905.70 - Step 6: Final answer
x = 8,074,394.55
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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.