Finding the Fourth Proportional to 151,675,393.26, 209,311,971.84 and 85,609,748.21
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Solution
The fourth proportional to 151,675,393.26, 209,311,971.84 and 85,609,748.21 is: 118,141,412.54
Step by Step Solution
- Step 1: Write the proportion equation
151,675,393.26 : 209,311,971.84 = 85,609,748.21 : x - Step 2: Convert to fraction form
151,675,393.26/209,311,971.84 = 85,609,748.21/x - Step 3: Cross multiply
151,675,393.26x = 209,311,971.84 × 85,609,748.21 - Step 4: Simplify right side
151,675,393.26x = 17,919,145,207,084,292 - Step 5: Solve for x
x = 17,919,145,207,084,292/151,675,393.26 - Step 6: Final answer
x = 118,141,412.54
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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.