Finding the Fourth Proportional to 5,568,881.40, 7,685,411.50 and 3,121,493.08
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Solution
The fourth proportional to 5,568,881.40, 7,685,411.50 and 3,121,493.08 is: 4,307,859.53
Step by Step Solution
- Step 1: Write the proportion equation
5,568,881.40 : 7,685,411.50 = 3,121,493.08 : x - Step 2: Convert to fraction form
5,568,881.40/7,685,411.50 = 3,121,493.08/x - Step 3: Cross multiply
5,568,881.40x = 7,685,411.50 × 3,121,493.08 - Step 4: Simplify right side
5,568,881.40x = 23,989,958,814,202.42 - Step 5: Solve for x
x = 23,989,958,814,202.42/5,568,881.40 - Step 6: Final answer
x = 4,307,859.53
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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.