Finding the Fourth Proportional to 3,849,244.20, 5,311,793.70 and 2,130,203.88
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Solution
The fourth proportional to 3,849,244.20, 5,311,793.70 and 2,130,203.88 is: 2,939,590.99
Step by Step Solution
- Step 1: Write the proportion equation
3,849,244.20 : 5,311,793.70 = 2,130,203.88 : x - Step 2: Convert to fraction form
3,849,244.20/5,311,793.70 = 2,130,203.88/x - Step 3: Cross multiply
3,849,244.20x = 5,311,793.70 × 2,130,203.88 - Step 4: Simplify right side
3,849,244.20x = 11,315,203,549,499.56 - Step 5: Solve for x
x = 11,315,203,549,499.56/3,849,244.20 - Step 6: Final answer
x = 2,939,590.99
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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.