Finding the Fourth Proportional to 797,378,682.20, 1,196,068,023.30 and 786,629,139.80
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Solution
The fourth proportional to 797,378,682.20, 1,196,068,023.30 and 786,629,139.80 is: 1,179,943,709.70
Step by Step Solution
- Step 1: Write the proportion equation
797,378,682.20 : 1,196,068,023.30 = 786,629,139.80 : x - Step 2: Convert to fraction form
797,378,682.20/1,196,068,023.30 = 786,629,139.80/x - Step 3: Cross multiply
797,378,682.20x = 1,196,068,023.30 × 786,629,139.80 - Step 4: Simplify right side
797,378,682.20x = 940,861,960,310,765,312 - Step 5: Solve for x
x = 940,861,960,310,765,312/797,378,682.20 - Step 6: Final answer
x = 1,179,943,709.70
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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.