Finding the Fourth Proportional to 3,987,041.68, 5,502,117.54 and 2,176,205.68
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Solution
The fourth proportional to 3,987,041.68, 5,502,117.54 and 2,176,205.68 is: 3,003,163.85
Step by Step Solution
- Step 1: Write the proportion equation
3,987,041.68 : 5,502,117.54 = 2,176,205.68 : x - Step 2: Convert to fraction form
3,987,041.68/5,502,117.54 = 2,176,205.68/x - Step 3: Cross multiply
3,987,041.68x = 5,502,117.54 × 2,176,205.68 - Step 4: Simplify right side
3,987,041.68x = 11,973,739,442,575.63 - Step 5: Solve for x
x = 11,973,739,442,575.63/3,987,041.68 - Step 6: Final answer
x = 3,003,163.85
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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.