Finding the Fourth Proportional to 815,719,200.48, 1,223,577,692.64 and 378,780,958.08
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Solution
The fourth proportional to 815,719,200.48, 1,223,577,692.64 and 378,780,958.08 is: 568,170,922.58
Step by Step Solution
- Step 1: Write the proportion equation
815,719,200.48 : 1,223,577,692.64 = 378,780,958.08 : x - Step 2: Convert to fraction form
815,719,200.48/1,223,577,692.64 = 378,780,958.08/x - Step 3: Cross multiply
815,719,200.48x = 1,223,577,692.64 × 378,780,958.08 - Step 4: Simplify right side
815,719,200.48x = 463,467,930,703,494,976 - Step 5: Solve for x
x = 463,467,930,703,494,976/815,719,200.48 - Step 6: Final answer
x = 568,170,922.58
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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.