Finding the Fourth Proportional to 5,515,066.70, 8,263,742.70 and 5,196,202.10
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Solution
The fourth proportional to 5,515,066.70, 8,263,742.70 and 5,196,202.10 is: 7,785,957.91
Step by Step Solution
- Step 1: Write the proportion equation
5,515,066.70 : 8,263,742.70 = 5,196,202.10 : x - Step 2: Convert to fraction form
5,515,066.70/8,263,742.70 = 5,196,202.10/x - Step 3: Cross multiply
5,515,066.70x = 8,263,742.70 × 5,196,202.10 - Step 4: Simplify right side
5,515,066.70x = 42,940,077,171,599.66 - Step 5: Solve for x
x = 42,940,077,171,599.66/5,515,066.70 - Step 6: Final answer
x = 7,785,957.91
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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.