Finding the Fourth Proportional to 4,115,725.93, 5,679,242.20 and 2,279,728.70
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Solution
The fourth proportional to 4,115,725.93, 5,679,242.20 and 2,279,728.70 is: 3,145,771.04
Step by Step Solution
- Step 1: Write the proportion equation
4,115,725.93 : 5,679,242.20 = 2,279,728.70 : x - Step 2: Convert to fraction form
4,115,725.93/5,679,242.20 = 2,279,728.70/x - Step 3: Cross multiply
4,115,725.93x = 5,679,242.20 × 2,279,728.70 - Step 4: Simplify right side
4,115,725.93x = 12,947,131,433,341.75 - Step 5: Solve for x
x = 12,947,131,433,341.75/4,115,725.93 - Step 6: Final answer
x = 3,145,771.04
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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.