Finding the Fourth Proportional to 3,750,538.68, 5,609,786.42 and 3,131,278.70
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Solution
The fourth proportional to 3,750,538.68, 5,609,786.42 and 3,131,278.70 is: 4,683,541.81
Step by Step Solution
- Step 1: Write the proportion equation
3,750,538.68 : 5,609,786.42 = 3,131,278.70 : x - Step 2: Convert to fraction form
3,750,538.68/5,609,786.42 = 3,131,278.70/x - Step 3: Cross multiply
3,750,538.68x = 5,609,786.42 × 3,131,278.70 - Step 4: Simplify right side
3,750,538.68x = 17,565,804,728,495.25 - Step 5: Solve for x
x = 17,565,804,728,495.25/3,750,538.68 - Step 6: Final answer
x = 4,683,541.81
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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.