Finding the Fourth Proportional to 4,650,640.74, 6,418,243.67 and 2,790,125.91
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Solution
The fourth proportional to 4,650,640.74, 6,418,243.67 and 2,790,125.91 is: 3,850,589.40
Step by Step Solution
- Step 1: Write the proportion equation
4,650,640.74 : 6,418,243.67 = 2,790,125.91 : x - Step 2: Convert to fraction form
4,650,640.74/6,418,243.67 = 2,790,125.91/x - Step 3: Cross multiply
4,650,640.74x = 6,418,243.67 × 2,790,125.91 - Step 4: Simplify right side
4,650,640.74x = 17,907,707,946,409.86 - Step 5: Solve for x
x = 17,907,707,946,409.86/4,650,640.74 - Step 6: Final answer
x = 3,850,589.40
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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.