Finding the Fourth Proportional to 853,189,720.23, 1,278,660,907.26 and 361,294,333.68
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Solution
The fourth proportional to 853,189,720.23, 1,278,660,907.26 and 361,294,333.68 is: 541,465,666.47
Step by Step Solution
- Step 1: Write the proportion equation
853,189,720.23 : 1,278,660,907.26 = 361,294,333.68 : x - Step 2: Convert to fraction form
853,189,720.23/1,278,660,907.26 = 361,294,333.68/x - Step 3: Cross multiply
853,189,720.23x = 1,278,660,907.26 × 361,294,333.68 - Step 4: Simplify right side
853,189,720.23x = 461,972,940,491,165,952 - Step 5: Solve for x
x = 461,972,940,491,165,952/853,189,720.23 - Step 6: Final answer
x = 541,465,666.47
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1.5x scale
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.