Finding the Fourth Proportional to 5,221,535.81, 7,205,843.68 and 2,929,865.99
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Solution
The fourth proportional to 5,221,535.81, 7,205,843.68 and 2,929,865.99 is: 4,043,284.79
Step by Step Solution
- Step 1: Write the proportion equation
5,221,535.81 : 7,205,843.68 = 2,929,865.99 : x - Step 2: Convert to fraction form
5,221,535.81/7,205,843.68 = 2,929,865.99/x - Step 3: Cross multiply
5,221,535.81x = 7,205,843.68 × 2,929,865.99 - Step 4: Simplify right side
5,221,535.81x = 21,112,156,300,415.05 - Step 5: Solve for x
x = 21,112,156,300,415.05/5,221,535.81 - Step 6: Final answer
x = 4,043,284.79
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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.