Finding the Fourth Proportional to 3,845,438.42, 5,305,102.17 and 2,213,455.28
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Solution
The fourth proportional to 3,845,438.42, 5,305,102.17 and 2,213,455.28 is: 3,053,645.67
Step by Step Solution
- Step 1: Write the proportion equation
3,845,438.42 : 5,305,102.17 = 2,213,455.28 : x - Step 2: Convert to fraction form
3,845,438.42/5,305,102.17 = 2,213,455.28/x - Step 3: Cross multiply
3,845,438.42x = 5,305,102.17 × 2,213,455.28 - Step 4: Simplify right side
3,845,438.42x = 11,742,606,382,600.45 - Step 5: Solve for x
x = 11,742,606,382,600.45/3,845,438.42 - Step 6: Final answer
x = 3,053,645.67
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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.