Finding the Fourth Proportional to 347,680,512,129.78, 521,520,768,194.70 and 347,680,512,129.78
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Solution
The fourth proportional to 347,680,512,129.78, 521,520,768,194.70 and 347,680,512,129.78 is: 521,520,768,194.70
Step by Step Solution
- Step 1: Write the proportion equation
347,680,512,129.78 : 521,520,768,194.70 = 347,680,512,129.78 : x - Step 2: Convert to fraction form
347,680,512,129.78/521,520,768,194.70 = 347,680,512,129.78/x - Step 3: Cross multiply
347,680,512,129.78x = 521,520,768,194.70 × 347,680,512,129.78 - Step 4: Simplify right side
347,680,512,129.78x = 181,322,607,772,249,589,022,720 - Step 5: Solve for x
x = 181,322,607,772,249,589,022,720/347,680,512,129.78 - Step 6: Final answer
x = 521,520,768,194.70
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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.