Finding the Fourth Proportional to 21,530,945.03, 29,717,691.16 and 14,190,082.70
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Solution
The fourth proportional to 21,530,945.03, 29,717,691.16 and 14,190,082.70 is: 19,585,600.85
Step by Step Solution
- Step 1: Write the proportion equation
21,530,945.03 : 29,717,691.16 = 14,190,082.70 : x - Step 2: Convert to fraction form
21,530,945.03/29,717,691.16 = 14,190,082.70/x - Step 3: Cross multiply
21,530,945.03x = 29,717,691.16 × 14,190,082.70 - Step 4: Simplify right side
21,530,945.03x = 421,696,495,213,458.94 - Step 5: Solve for x
x = 421,696,495,213,458.94/21,530,945.03 - Step 6: Final answer
x = 19,585,600.85
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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.