Finding the Fourth Proportional to 3,177,843.13, 4,385,405.21 and 1,801,446.48
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Solution
The fourth proportional to 3,177,843.13, 4,385,405.21 and 1,801,446.48 is: 2,485,985.76
Step by Step Solution
- Step 1: Write the proportion equation
3,177,843.13 : 4,385,405.21 = 1,801,446.48 : x - Step 2: Convert to fraction form
3,177,843.13/4,385,405.21 = 1,801,446.48/x - Step 3: Cross multiply
3,177,843.13x = 4,385,405.21 × 1,801,446.48 - Step 4: Simplify right side
3,177,843.13x = 7,900,072,769,920.93 - Step 5: Solve for x
x = 7,900,072,769,920.93/3,177,843.13 - Step 6: Final answer
x = 2,485,985.76
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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.