Finding the Fourth Proportional to 8,130,858.24, 12,193,790.40 and 5,622,631.68
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Solution
The fourth proportional to 8,130,858.24, 12,193,790.40 and 5,622,631.68 is: 8,432,220.83
Step by Step Solution
- Step 1: Write the proportion equation
8,130,858.24 : 12,193,790.40 = 5,622,631.68 : x - Step 2: Convert to fraction form
8,130,858.24/12,193,790.40 = 5,622,631.68/x - Step 3: Cross multiply
8,130,858.24x = 12,193,790.40 × 5,622,631.68 - Step 4: Simplify right side
8,130,858.24x = 68,561,192,202,319.87 - Step 5: Solve for x
x = 68,561,192,202,319.87/8,130,858.24 - Step 6: Final answer
x = 8,432,220.83
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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.