Finding the Fourth Proportional to 7,338,812.80, 11,008,219.20 and 6,151,927.90
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Solution
The fourth proportional to 7,338,812.80, 11,008,219.20 and 6,151,927.90 is: 9,227,891.85
Step by Step Solution
- Step 1: Write the proportion equation
7,338,812.80 : 11,008,219.20 = 6,151,927.90 : x - Step 2: Convert to fraction form
7,338,812.80/11,008,219.20 = 6,151,927.90/x - Step 3: Cross multiply
7,338,812.80x = 11,008,219.20 × 6,151,927.90 - Step 4: Simplify right side
7,338,812.80x = 67,721,770,825,795.68 - Step 5: Solve for x
x = 67,721,770,825,795.68/7,338,812.80 - Step 6: Final answer
x = 9,227,891.85
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1.5x scale
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.