Finding the Fourth Proportional to 7,827,719.92, 11,745,290.40 and 3,781,939.84
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Solution
The fourth proportional to 7,827,719.92, 11,745,290.40 and 3,781,939.84 is: 5,674,702.49
Step by Step Solution
- Step 1: Write the proportion equation
7,827,719.92 : 11,745,290.40 = 3,781,939.84 : x - Step 2: Convert to fraction form
7,827,719.92/11,745,290.40 = 3,781,939.84/x - Step 3: Cross multiply
7,827,719.92x = 11,745,290.40 × 3,781,939.84 - Step 4: Simplify right side
7,827,719.92x = 44,419,981,696,129.54 - Step 5: Solve for x
x = 44,419,981,696,129.54/7,827,719.92 - Step 6: Final answer
x = 5,674,702.49
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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.