Finding the Fourth Proportional to 2,166,651.70, 2,990,944.97 and 1,432,048.42
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Solution
The fourth proportional to 2,166,651.70, 2,990,944.97 and 1,432,048.42 is: 1,976,865.05
Step by Step Solution
- Step 1: Write the proportion equation
2,166,651.70 : 2,990,944.97 = 1,432,048.42 : x - Step 2: Convert to fraction form
2,166,651.70/2,990,944.97 = 1,432,048.42/x - Step 3: Cross multiply
2,166,651.70x = 2,990,944.97 × 1,432,048.42 - Step 4: Simplify right side
2,166,651.70x = 4,283,178,018,595.45 - Step 5: Solve for x
x = 4,283,178,018,595.45/2,166,651.70 - Step 6: Final answer
x = 1,976,865.05
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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.