Finding the Fourth Proportional to 3,891,716,548.96, 5,370,542,095.37 and 2,107,529,172.87
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Solution
The fourth proportional to 3,891,716,548.96, 5,370,542,095.37 and 2,107,529,172.87 is: 2,908,375,776.53
Step by Step Solution
- Step 1: Write the proportion equation
3,891,716,548.96 : 5,370,542,095.37 = 2,107,529,172.87 : x - Step 2: Convert to fraction form
3,891,716,548.96/5,370,542,095.37 = 2,107,529,172.87/x - Step 3: Cross multiply
3,891,716,548.96x = 5,370,542,095.37 × 2,107,529,172.87 - Step 4: Simplify right side
3,891,716,548.96x = 11,318,574,140,118,650,880 - Step 5: Solve for x
x = 11,318,574,140,118,650,880/3,891,716,548.96 - Step 6: Final answer
x = 2,908,375,776.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.