Finding the Fourth Proportional to 4,879,991.70, 6,728,402.25 and 3,959,614.62
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Solution
The fourth proportional to 4,879,991.70, 6,728,402.25 and 3,959,614.62 is: 5,459,410.91
Step by Step Solution
- Step 1: Write the proportion equation
4,879,991.70 : 6,728,402.25 = 3,959,614.62 : x - Step 2: Convert to fraction form
4,879,991.70/6,728,402.25 = 3,959,614.62/x - Step 3: Cross multiply
4,879,991.70x = 6,728,402.25 × 3,959,614.62 - Step 4: Simplify right side
4,879,991.70x = 26,641,879,918,340.89 - Step 5: Solve for x
x = 26,641,879,918,340.89/4,879,991.70 - Step 6: Final answer
x = 5,459,410.91
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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.