Finding the Fourth Proportional to 3,318,381,457.96, 4,977,508,112.46 and 990,895,472.68
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Solution
The fourth proportional to 3,318,381,457.96, 4,977,508,112.46 and 990,895,472.68 is: 1,486,324,075.86
Step by Step Solution
- Step 1: Write the proportion equation
3,318,381,457.96 : 4,977,508,112.46 = 990,895,472.68 : x - Step 2: Convert to fraction form
3,318,381,457.96/4,977,508,112.46 = 990,895,472.68/x - Step 3: Cross multiply
3,318,381,457.96x = 4,977,508,112.46 × 990,895,472.68 - Step 4: Simplify right side
3,318,381,457.96x = 4,932,190,253,864,586,240 - Step 5: Solve for x
x = 4,932,190,253,864,586,240/3,318,381,457.96 - Step 6: Final answer
x = 1,486,324,075.86
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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.