Finding the Fourth Proportional to 5,455,543.40, 8,183,642.70 and 1,669,059.08
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Solution
The fourth proportional to 5,455,543.40, 8,183,642.70 and 1,669,059.08 is: 2,503,688.85
Step by Step Solution
- Step 1: Write the proportion equation
5,455,543.40 : 8,183,642.70 = 1,669,059.08 : x - Step 2: Convert to fraction form
5,455,543.40/8,183,642.70 = 1,669,059.08/x - Step 3: Cross multiply
5,455,543.40x = 8,183,642.70 × 1,669,059.08 - Step 4: Simplify right side
5,455,543.40x = 13,658,983,155,910.72 - Step 5: Solve for x
x = 13,658,983,155,910.72/5,455,543.40 - Step 6: Final answer
x = 2,503,688.85
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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.