Finding the Fourth Proportional to 6,669,220.50, 9,987,845.67 and 3,422,213.46
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Solution
The fourth proportional to 6,669,220.50, 9,987,845.67 and 3,422,213.46 is: 5,125,117.68
Step by Step Solution
- Step 1: Write the proportion equation
6,669,220.50 : 9,987,845.67 = 3,422,213.46 : x - Step 2: Convert to fraction form
6,669,220.50/9,987,845.67 = 3,422,213.46/x - Step 3: Cross multiply
6,669,220.50x = 9,987,845.67 × 3,422,213.46 - Step 4: Simplify right side
6,669,220.50x = 34,180,539,888,276.72 - Step 5: Solve for x
x = 34,180,539,888,276.72/6,669,220.50 - Step 6: Final answer
x = 5,125,117.68
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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.