Finding the Fourth Proportional to 7,136,100.18, 9,847,891.84 and 3,872,943.09
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Solution
The fourth proportional to 7,136,100.18, 9,847,891.84 and 3,872,943.09 is: 5,344,701.40
Step by Step Solution
- Step 1: Write the proportion equation
7,136,100.18 : 9,847,891.84 = 3,872,943.09 : x - Step 2: Convert to fraction form
7,136,100.18/9,847,891.84 = 3,872,943.09/x - Step 3: Cross multiply
7,136,100.18x = 9,847,891.84 × 3,872,943.09 - Step 4: Simplify right side
7,136,100.18x = 38,140,324,652,795.38 - Step 5: Solve for x
x = 38,140,324,652,795.38/7,136,100.18 - Step 6: Final answer
x = 5,344,701.40
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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.