Finding the Fourth Proportional to 5,287,879.19, 7,297,381.10 and 2,873,586.71
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Solution
The fourth proportional to 5,287,879.19, 7,297,381.10 and 2,873,586.71 is: 3,965,608.25
Step by Step Solution
- Step 1: Write the proportion equation
5,287,879.19 : 7,297,381.10 = 2,873,586.71 : x - Step 2: Convert to fraction form
5,287,879.19/7,297,381.10 = 2,873,586.71/x - Step 3: Cross multiply
5,287,879.19x = 7,297,381.10 × 2,873,586.71 - Step 4: Simplify right side
5,287,879.19x = 20,969,657,317,462.24 - Step 5: Solve for x
x = 20,969,657,317,462.24/5,287,879.19 - Step 6: Final answer
x = 3,965,608.25
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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.