Finding the Fourth Proportional to 5,460,769.20, 8,190,497.70 and 2,265,562.20
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Solution
The fourth proportional to 5,460,769.20, 8,190,497.70 and 2,265,562.20 is: 3,398,071.10
Step by Step Solution
- Step 1: Write the proportion equation
5,460,769.20 : 8,190,497.70 = 2,265,562.20 : x - Step 2: Convert to fraction form
5,460,769.20/8,190,497.70 = 2,265,562.20/x - Step 3: Cross multiply
5,460,769.20x = 8,190,497.70 × 2,265,562.20 - Step 4: Simplify right side
5,460,769.20x = 18,556,081,988,306.94 - Step 5: Solve for x
x = 18,556,081,988,306.94/5,460,769.20 - Step 6: Final answer
x = 3,398,071.10
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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.