Finding the Fourth Proportional to 7,392,206.20, 11,088,309.30 and 3,608,116.60
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Solution
The fourth proportional to 7,392,206.20, 11,088,309.30 and 3,608,116.60 is: 5,412,174.90
Step by Step Solution
- Step 1: Write the proportion equation
7,392,206.20 : 11,088,309.30 = 3,608,116.60 : x - Step 2: Convert to fraction form
7,392,206.20/11,088,309.30 = 3,608,116.60/x - Step 3: Cross multiply
7,392,206.20x = 11,088,309.30 × 3,608,116.60 - Step 4: Simplify right side
7,392,206.20x = 40,007,912,851,264.38 - Step 5: Solve for x
x = 40,007,912,851,264.38/7,392,206.20 - Step 6: Final answer
x = 5,412,174.90
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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.