Finding the Fourth Proportional to 2,135,481.77, 2,946,964.88 and 1,168,612.11
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Solution
The fourth proportional to 2,135,481.77, 2,946,964.88 and 1,168,612.11 is: 1,612,684.73
Step by Step Solution
- Step 1: Write the proportion equation
2,135,481.77 : 2,946,964.88 = 1,168,612.11 : x - Step 2: Convert to fraction form
2,135,481.77/2,946,964.88 = 1,168,612.11/x - Step 3: Cross multiply
2,135,481.77x = 2,946,964.88 × 1,168,612.11 - Step 4: Simplify right side
2,135,481.77x = 3,443,858,849,434.23 - Step 5: Solve for x
x = 3,443,858,849,434.23/2,135,481.77 - Step 6: Final answer
x = 1,612,684.73
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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.