Finding the Fourth Proportional to 5,178,057.94, 7,148,785.11 and 4,603,511.17
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Solution
The fourth proportional to 5,178,057.94, 7,148,785.11 and 4,603,511.17 is: 6,355,570.46
Step by Step Solution
- Step 1: Write the proportion equation
5,178,057.94 : 7,148,785.11 = 4,603,511.17 : x - Step 2: Convert to fraction form
5,178,057.94/7,148,785.11 = 4,603,511.17/x - Step 3: Cross multiply
5,178,057.94x = 7,148,785.11 × 4,603,511.17 - Step 4: Simplify right side
5,178,057.94x = 32,909,512,097,487.49 - Step 5: Solve for x
x = 32,909,512,097,487.49/5,178,057.94 - Step 6: Final answer
x = 6,355,570.46
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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.