Finding the Fourth Proportional to 4,971,392.20, 6,861,462.92 and 3,111,670.07
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Solution
The fourth proportional to 4,971,392.20, 6,861,462.92 and 3,111,670.07 is: 4,294,694.11
Step by Step Solution
- Step 1: Write the proportion equation
4,971,392.20 : 6,861,462.92 = 3,111,670.07 : x - Step 2: Convert to fraction form
4,971,392.20/6,861,462.92 = 3,111,670.07/x - Step 3: Cross multiply
4,971,392.20x = 6,861,462.92 × 3,111,670.07 - Step 4: Simplify right side
4,971,392.20x = 21,350,608,804,578.80 - Step 5: Solve for x
x = 21,350,608,804,578.80/4,971,392.20 - Step 6: Final answer
x = 4,294,694.11
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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.