Finding the Fourth Proportional to 3,199,672.68, 4,415,617.85 and 1,910,272.56
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Solution
The fourth proportional to 3,199,672.68, 4,415,617.85 and 1,910,272.56 is: 2,636,217.65
Step by Step Solution
- Step 1: Write the proportion equation
3,199,672.68 : 4,415,617.85 = 1,910,272.56 : x - Step 2: Convert to fraction form
3,199,672.68/4,415,617.85 = 1,910,272.56/x - Step 3: Cross multiply
3,199,672.68x = 4,415,617.85 × 1,910,272.56 - Step 4: Simplify right side
3,199,672.68x = 8,435,033,604,749.83 - Step 5: Solve for x
x = 8,435,033,604,749.83/3,199,672.68 - Step 6: Final answer
x = 2,636,217.65
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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.