Finding the Fourth Proportional to 3,888,051.88, 5,365,640.44 and 2,122,046.68
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Solution
The fourth proportional to 3,888,051.88, 5,365,640.44 and 2,122,046.68 is: 2,928,494.74
Step by Step Solution
- Step 1: Write the proportion equation
3,888,051.88 : 5,365,640.44 = 2,122,046.68 : x - Step 2: Convert to fraction form
3,888,051.88/5,365,640.44 = 2,122,046.68/x - Step 3: Cross multiply
3,888,051.88x = 5,365,640.44 × 2,122,046.68 - Step 4: Simplify right side
3,888,051.88x = 11,386,139,481,775.74 - Step 5: Solve for x
x = 11,386,139,481,775.74/3,888,051.88 - Step 6: Final answer
x = 2,928,494.74
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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.