Finding the Fourth Proportional to 342,853,375.80, 473,129,610.91 and 201,733,736.68
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Solution
The fourth proportional to 342,853,375.80, 473,129,610.91 and 201,733,736.68 is: 278,387,821.38
Step by Step Solution
- Step 1: Write the proportion equation
342,853,375.80 : 473,129,610.91 = 201,733,736.68 : x - Step 2: Convert to fraction form
342,853,375.80/473,129,610.91 = 201,733,736.68/x - Step 3: Cross multiply
342,853,375.80x = 473,129,610.91 × 201,733,736.68 - Step 4: Simplify right side
342,853,375.80x = 95,446,204,340,463,152 - Step 5: Solve for x
x = 95,446,204,340,463,152/342,853,375.80 - Step 6: Final answer
x = 278,387,821.38
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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.