Finding the Fourth Proportional to 5,148,683.64, 7,102,230.39 and 3,211,579.98
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Solution
The fourth proportional to 5,148,683.64, 7,102,230.39 and 3,211,579.98 is: 4,430,138.37
Step by Step Solution
- Step 1: Write the proportion equation
5,148,683.64 : 7,102,230.39 = 3,211,579.98 : x - Step 2: Convert to fraction form
5,148,683.64/7,102,230.39 = 3,211,579.98/x - Step 3: Cross multiply
5,148,683.64x = 7,102,230.39 × 3,211,579.98 - Step 4: Simplify right side
5,148,683.64x = 22,809,380,933,871.59 - Step 5: Solve for x
x = 22,809,380,933,871.59/5,148,683.64 - Step 6: Final answer
x = 4,430,138.37
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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.