Finding the Fourth Proportional to 3,112,385.64, 4,298,635.11 and 2,092,018.92
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Solution
The fourth proportional to 3,112,385.64, 4,298,635.11 and 2,092,018.92 is: 2,889,367.52
Step by Step Solution
- Step 1: Write the proportion equation
3,112,385.64 : 4,298,635.11 = 2,092,018.92 : x - Step 2: Convert to fraction form
3,112,385.64/4,298,635.11 = 2,092,018.92/x - Step 3: Cross multiply
3,112,385.64x = 4,298,635.11 × 2,092,018.92 - Step 4: Simplify right side
3,112,385.64x = 8,992,825,980,296.28 - Step 5: Solve for x
x = 8,992,825,980,296.28/3,112,385.64 - Step 6: Final answer
x = 2,889,367.52
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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.