Finding the Fourth Proportional to 3,931,469.84, 5,427,102.39 and 2,643,057.50
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Solution
The fourth proportional to 3,931,469.84, 5,427,102.39 and 2,643,057.50 is: 3,648,544.76
Step by Step Solution
- Step 1: Write the proportion equation
3,931,469.84 : 5,427,102.39 = 2,643,057.50 : x - Step 2: Convert to fraction form
3,931,469.84/5,427,102.39 = 2,643,057.50/x - Step 3: Cross multiply
3,931,469.84x = 5,427,102.39 × 2,643,057.50 - Step 4: Simplify right side
3,931,469.84x = 14,344,143,675,157.42 - Step 5: Solve for x
x = 14,344,143,675,157.42/3,931,469.84 - Step 6: Final answer
x = 3,648,544.76
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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.