Finding the Fourth Proportional to 3,924,123.36, 5,415,217.92 and 2,205,219.12
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Solution
The fourth proportional to 3,924,123.36, 5,415,217.92 and 2,205,219.12 is: 3,043,161.75
Step by Step Solution
- Step 1: Write the proportion equation
3,924,123.36 : 5,415,217.92 = 2,205,219.12 : x - Step 2: Convert to fraction form
3,924,123.36/5,415,217.92 = 2,205,219.12/x - Step 3: Cross multiply
3,924,123.36x = 5,415,217.92 × 2,205,219.12 - Step 4: Simplify right side
3,924,123.36x = 11,941,742,096,150.63 - Step 5: Solve for x
x = 11,941,742,096,150.63/3,924,123.36 - Step 6: Final answer
x = 3,043,161.75
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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.