Finding the Fourth Proportional to 853,189,743.72, 1,278,660,942.42 and 361,294,357.08
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Solution
The fourth proportional to 853,189,743.72, 1,278,660,942.42 and 361,294,357.08 is: 541,465,701.52
Step by Step Solution
- Step 1: Write the proportion equation
853,189,743.72 : 1,278,660,942.42 = 361,294,357.08 : x - Step 2: Convert to fraction form
853,189,743.72/1,278,660,942.42 = 361,294,357.08/x - Step 3: Cross multiply
853,189,743.72x = 1,278,660,942.42 × 361,294,357.08 - Step 4: Simplify right side
853,189,743.72x = 461,972,983,114,940,800 - Step 5: Solve for x
x = 461,972,983,114,940,800/853,189,743.72 - Step 6: Final answer
x = 541,465,701.52
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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.