Finding the Fourth Proportional to 8,122,041.87, 11,208,430.94 and 4,450,375.05
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Solution
The fourth proportional to 8,122,041.87, 11,208,430.94 and 4,450,375.05 is: 6,141,524.78
Step by Step Solution
- Step 1: Write the proportion equation
8,122,041.87 : 11,208,430.94 = 4,450,375.05 : x - Step 2: Convert to fraction form
8,122,041.87/11,208,430.94 = 4,450,375.05/x - Step 3: Cross multiply
8,122,041.87x = 11,208,430.94 × 4,450,375.05 - Step 4: Simplify right side
8,122,041.87x = 49,881,721,382,772.17 - Step 5: Solve for x
x = 49,881,721,382,772.17/8,122,041.87 - Step 6: Final answer
x = 6,141,524.78
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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.