Finding the Fourth Proportional to 3,213,664,586.40, 4,820,496,879.60 and 884,960,983.20
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Solution
The fourth proportional to 3,213,664,586.40, 4,820,496,879.60 and 884,960,983.20 is: 1,327,441,474.80
Step by Step Solution
- Step 1: Write the proportion equation
3,213,664,586.40 : 4,820,496,879.60 = 884,960,983.20 : x - Step 2: Convert to fraction form
3,213,664,586.40/4,820,496,879.60 = 884,960,983.20/x - Step 3: Cross multiply
3,213,664,586.40x = 4,820,496,879.60 × 884,960,983.20 - Step 4: Simplify right side
3,213,664,586.40x = 4,265,951,658,083,348,480 - Step 5: Solve for x
x = 4,265,951,658,083,348,480/3,213,664,586.40 - Step 6: Final answer
x = 1,327,441,474.80
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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.