Finding the Fourth Proportional to 3,987,042.75, 5,502,119.00 and 2,176,206.75
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Solution
The fourth proportional to 3,987,042.75, 5,502,119.00 and 2,176,206.75 is: 3,003,165.32
Step by Step Solution
- Step 1: Write the proportion equation
3,987,042.75 : 5,502,119.00 = 2,176,206.75 : x - Step 2: Convert to fraction form
3,987,042.75/5,502,119.00 = 2,176,206.75/x - Step 3: Cross multiply
3,987,042.75x = 5,502,119.00 × 2,176,206.75 - Step 4: Simplify right side
3,987,042.75x = 11,973,748,496,222.22 - Step 5: Solve for x
x = 11,973,748,496,222.22/3,987,042.75 - Step 6: Final answer
x = 3,003,165.32
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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.