Finding the Fourth Proportional to 427,305,719.02, 640,946,620.77 and 136,190,310.84
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Solution
The fourth proportional to 427,305,719.02, 640,946,620.77 and 136,190,310.84 is: 204,281,655.09
Step by Step Solution
- Step 1: Write the proportion equation
427,305,719.02 : 640,946,620.77 = 136,190,310.84 : x - Step 2: Convert to fraction form
427,305,719.02/640,946,620.77 = 136,190,310.84/x - Step 3: Cross multiply
427,305,719.02x = 640,946,620.77 × 136,190,310.84 - Step 4: Simplify right side
427,305,719.02x = 87,290,719,512,584,832 - Step 5: Solve for x
x = 87,290,719,512,584,832/427,305,719.02 - Step 6: Final answer
x = 204,281,655.09
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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.