Finding the Fourth Proportional to 3,761,625.84, 5,191,103.76 and 2,129,989
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Solution
The fourth proportional to 3,761,625.84, 5,191,103.76 and 2,129,989 is: 2,939,418.85
Step by Step Solution
- Step 1: Write the proportion equation
3,761,625.84 : 5,191,103.76 = 2,129,989 : x - Step 2: Convert to fraction form
3,761,625.84/5,191,103.76 = 2,129,989/x - Step 3: Cross multiply
3,761,625.84x = 5,191,103.76 × 2,129,989 - Step 4: Simplify right side
3,761,625.84x = 11,056,993,906,658.64 - Step 5: Solve for x
x = 11,056,993,906,658.64/3,761,625.84 - Step 6: Final answer
x = 2,939,418.85
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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.