Finding the Fourth Proportional to 84,394,160.90, 126,613,965.99 and 43,431,279.11
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Solution
The fourth proportional to 84,394,160.90, 126,613,965.99 and 43,431,279.11 is: 65,158,613.31
Step by Step Solution
- Step 1: Write the proportion equation
84,394,160.90 : 126,613,965.99 = 43,431,279.11 : x - Step 2: Convert to fraction form
84,394,160.90/126,613,965.99 = 43,431,279.11/x - Step 3: Cross multiply
84,394,160.90x = 126,613,965.99 × 43,431,279.11 - Step 4: Simplify right side
84,394,160.90x = 5,499,006,495,918,581 - Step 5: Solve for x
x = 5,499,006,495,918,581/84,394,160.90 - Step 6: Final answer
x = 65,158,613.31
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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.