Finding the Fourth Proportional to 7,121,838.28, 10,682,770.80 and 1,730,493.28
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Solution
The fourth proportional to 7,121,838.28, 10,682,770.80 and 1,730,493.28 is: 2,595,743.17
Step by Step Solution
- Step 1: Write the proportion equation
7,121,838.28 : 10,682,770.80 = 1,730,493.28 : x - Step 2: Convert to fraction form
7,121,838.28/10,682,770.80 = 1,730,493.28/x - Step 3: Cross multiply
7,121,838.28x = 10,682,770.80 × 1,730,493.28 - Step 4: Simplify right side
7,121,838.28x = 18,486,463,081,180.23 - Step 5: Solve for x
x = 18,486,463,081,180.23/7,121,838.28 - Step 6: Final answer
x = 2,595,743.17
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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.