Finding the Fourth Proportional to 5,278,964.59, 7,918,806.33 and 1,685,002.09
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Solution
The fourth proportional to 5,278,964.59, 7,918,806.33 and 1,685,002.09 is: 2,527,617.86
Step by Step Solution
- Step 1: Write the proportion equation
5,278,964.59 : 7,918,806.33 = 1,685,002.09 : x - Step 2: Convert to fraction form
5,278,964.59/7,918,806.33 = 1,685,002.09/x - Step 3: Cross multiply
5,278,964.59x = 7,918,806.33 × 1,685,002.09 - Step 4: Simplify right side
5,278,964.59x = 13,343,205,168,336.19 - Step 5: Solve for x
x = 13,343,205,168,336.19/5,278,964.59 - Step 6: Final answer
x = 2,527,617.86
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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.