Finding the Fourth Proportional to 11,354,616.80, 15,669,171.24 and 6,459,734.56
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Solution
The fourth proportional to 11,354,616.80, 15,669,171.24 and 6,459,734.56 is: 8,914,319.94
Step by Step Solution
- Step 1: Write the proportion equation
11,354,616.80 : 15,669,171.24 = 6,459,734.56 : x - Step 2: Convert to fraction form
11,354,616.80/15,669,171.24 = 6,459,734.56/x - Step 3: Cross multiply
11,354,616.80x = 15,669,171.24 × 6,459,734.56 - Step 4: Simplify right side
11,354,616.80x = 101,218,686,985,586.05 - Step 5: Solve for x
x = 101,218,686,985,586.05/11,354,616.80 - Step 6: Final answer
x = 8,914,319.94
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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.