Finding the Fourth Proportional to 68,301,391.21, 94,255,919.89 and 36,939,439.97
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Solution
The fourth proportional to 68,301,391.21, 94,255,919.89 and 36,939,439.97 is: 50,976,427.17
Step by Step Solution
- Step 1: Write the proportion equation
68,301,391.21 : 94,255,919.89 = 36,939,439.97 : x - Step 2: Convert to fraction form
68,301,391.21/94,255,919.89 = 36,939,439.97/x - Step 3: Cross multiply
68,301,391.21x = 94,255,919.89 × 36,939,439.97 - Step 4: Simplify right side
68,301,391.21x = 3,481,760,894,545,227 - Step 5: Solve for x
x = 3,481,760,894,545,227/68,301,391.21 - Step 6: Final answer
x = 50,976,427.17
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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.