Finding the Fourth Proportional to 852,308,826.20, 1,278,463,239.30 and 576,809,811.80
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Solution
The fourth proportional to 852,308,826.20, 1,278,463,239.30 and 576,809,811.80 is: 865,214,717.70
Step by Step Solution
- Step 1: Write the proportion equation
852,308,826.20 : 1,278,463,239.30 = 576,809,811.80 : x - Step 2: Convert to fraction form
852,308,826.20/1,278,463,239.30 = 576,809,811.80/x - Step 3: Cross multiply
852,308,826.20x = 1,278,463,239.30 × 576,809,811.80 - Step 4: Simplify right side
852,308,826.20x = 737,430,140,453,851,264 - Step 5: Solve for x
x = 737,430,140,453,851,264/852,308,826.20 - Step 6: Final answer
x = 865,214,717.70
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Double scale
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Similar ratio
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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.