Finding the Fourth Proportional to 5,478,242.76, 8,212,910.94 and 2,285,747.64
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Solution
The fourth proportional to 5,478,242.76, 8,212,910.94 and 2,285,747.64 is: 3,426,763.40
Step by Step Solution
- Step 1: Write the proportion equation
5,478,242.76 : 8,212,910.94 = 2,285,747.64 : x - Step 2: Convert to fraction form
5,478,242.76/8,212,910.94 = 2,285,747.64/x - Step 3: Cross multiply
5,478,242.76x = 8,212,910.94 × 2,285,747.64 - Step 4: Simplify right side
5,478,242.76x = 18,772,641,798,635.18 - Step 5: Solve for x
x = 18,772,641,798,635.18/5,478,242.76 - Step 6: Final answer
x = 3,426,763.40
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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.