Finding the Fourth Proportional to 57,003,531.48, 85,505,306.09 and 13,872,734.68
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Solution
The fourth proportional to 57,003,531.48, 85,505,306.09 and 13,872,734.68 is: 20,809,104.18
Step by Step Solution
- Step 1: Write the proportion equation
57,003,531.48 : 85,505,306.09 = 13,872,734.68 : x - Step 2: Convert to fraction form
57,003,531.48/85,505,306.09 = 13,872,734.68/x - Step 3: Cross multiply
57,003,531.48x = 85,505,306.09 × 13,872,734.68 - Step 4: Simplify right side
57,003,531.48x = 1,186,192,425,118,758.25 - Step 5: Solve for x
x = 1,186,192,425,118,758.25/57,003,531.48 - Step 6: Final answer
x = 20,809,104.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.