Finding the Fourth Proportional to 12,905,378.75, 17,813,183.49 and 8,435,583.15
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Solution
The fourth proportional to 12,905,378.75, 17,813,183.49 and 8,435,583.15 is: 11,643,563.00
Step by Step Solution
- Step 1: Write the proportion equation
12,905,378.75 : 17,813,183.49 = 8,435,583.15 : x - Step 2: Convert to fraction form
12,905,378.75/17,813,183.49 = 8,435,583.15/x - Step 3: Cross multiply
12,905,378.75x = 17,813,183.49 × 8,435,583.15 - Step 4: Simplify right side
12,905,378.75x = 150,264,590,496,102.19 - Step 5: Solve for x
x = 150,264,590,496,102.19/12,905,378.75 - Step 6: Final answer
x = 11,643,563.00
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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.