Finding the Fourth Proportional to 1,310,646,167.80, 1,965,969,251.70 and 796,347,748.60
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Solution
The fourth proportional to 1,310,646,167.80, 1,965,969,251.70 and 796,347,748.60 is: 1,194,521,622.90
Step by Step Solution
- Step 1: Write the proportion equation
1,310,646,167.80 : 1,965,969,251.70 = 796,347,748.60 : x - Step 2: Convert to fraction form
1,310,646,167.80/1,965,969,251.70 = 796,347,748.60/x - Step 3: Cross multiply
1,310,646,167.80x = 1,965,969,251.70 × 796,347,748.60 - Step 4: Simplify right side
1,310,646,167.80x = 1,565,595,187,408,121,856 - Step 5: Solve for x
x = 1,565,595,187,408,121,856/1,310,646,167.80 - Step 6: Final answer
x = 1,194,521,622.90
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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.