Finding the Fourth Proportional to 3,876,704.84, 5,349,852.66 and 2,157,788.36
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Solution
The fourth proportional to 3,876,704.84, 5,349,852.66 and 2,157,788.36 is: 2,977,747.93
Step by Step Solution
- Step 1: Write the proportion equation
3,876,704.84 : 5,349,852.66 = 2,157,788.36 : x - Step 2: Convert to fraction form
3,876,704.84/5,349,852.66 = 2,157,788.36/x - Step 3: Cross multiply
3,876,704.84x = 5,349,852.66 × 2,157,788.36 - Step 4: Simplify right side
3,876,704.84x = 11,543,849,797,463.04 - Step 5: Solve for x
x = 11,543,849,797,463.04/3,876,704.84 - Step 6: Final answer
x = 2,977,747.93
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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.