Finding the Fourth Proportional to 6,190,789.90, 9,278,311.65 and 5,513,694.70
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Solution
The fourth proportional to 6,190,789.90, 9,278,311.65 and 5,513,694.70 is: 8,263,529.95
Step by Step Solution
- Step 1: Write the proportion equation
6,190,789.90 : 9,278,311.65 = 5,513,694.70 : x - Step 2: Convert to fraction form
6,190,789.90/9,278,311.65 = 5,513,694.70/x - Step 3: Cross multiply
6,190,789.90x = 9,278,311.65 × 5,513,694.70 - Step 4: Simplify right side
6,190,789.90x = 51,157,777,769,553.26 - Step 5: Solve for x
x = 51,157,777,769,553.26/6,190,789.90 - Step 6: Final answer
x = 8,263,529.95
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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.