Finding the Fourth Proportional to 3,931,737.12, 5,425,971.84 and 2,212,968.96
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Solution
The fourth proportional to 3,931,737.12, 5,425,971.84 and 2,212,968.96 is: 3,053,995.45
Step by Step Solution
- Step 1: Write the proportion equation
3,931,737.12 : 5,425,971.84 = 2,212,968.96 : x - Step 2: Convert to fraction form
3,931,737.12/5,425,971.84 = 2,212,968.96/x - Step 3: Cross multiply
3,931,737.12x = 5,425,971.84 × 2,212,968.96 - Step 4: Simplify right side
3,931,737.12x = 12,007,507,259,754.09 - Step 5: Solve for x
x = 12,007,507,259,754.09/3,931,737.12 - Step 6: Final answer
x = 3,053,995.45
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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.