Finding the Fourth Proportional to 3,930,908.88, 5,424,636.96 and 2,212,058.08
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Solution
The fourth proportional to 3,930,908.88, 5,424,636.96 and 2,212,058.08 is: 3,052,630.42
Step by Step Solution
- Step 1: Write the proportion equation
3,930,908.88 : 5,424,636.96 = 2,212,058.08 : x - Step 2: Convert to fraction form
3,930,908.88/5,424,636.96 = 2,212,058.08/x - Step 3: Cross multiply
3,930,908.88x = 5,424,636.96 × 2,212,058.08 - Step 4: Simplify right side
3,930,908.88x = 11,999,612,018,434.64 - Step 5: Solve for x
x = 11,999,612,018,434.64/3,930,908.88 - Step 6: Final answer
x = 3,052,630.42
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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.