Finding the Fourth Proportional to 129,408,207,276.80, 194,112,310,915.20 and 129,408,207,276.80
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Solution
The fourth proportional to 129,408,207,276.80, 194,112,310,915.20 and 129,408,207,276.80 is: 194,112,310,915.20
Step by Step Solution
- Step 1: Write the proportion equation
129,408,207,276.80 : 194,112,310,915.20 = 129,408,207,276.80 : x - Step 2: Convert to fraction form
129,408,207,276.80/194,112,310,915.20 = 129,408,207,276.80/x - Step 3: Cross multiply
129,408,207,276.80x = 194,112,310,915.20 × 129,408,207,276.80 - Step 4: Simplify right side
129,408,207,276.80x = 25,119,726,165,892,851,040,256 - Step 5: Solve for x
x = 25,119,726,165,892,851,040,256/129,408,207,276.80 - Step 6: Final answer
x = 194,112,310,915.20
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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.