Finding the Fourth Proportional to 6,218,036.20, 8,580,907.39 and 3,605,048.09
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Solution
The fourth proportional to 6,218,036.20, 8,580,907.39 and 3,605,048.09 is: 4,974,976.47
Step by Step Solution
- Step 1: Write the proportion equation
6,218,036.20 : 8,580,907.39 = 3,605,048.09 : x - Step 2: Convert to fraction form
6,218,036.20/8,580,907.39 = 3,605,048.09/x - Step 3: Cross multiply
6,218,036.20x = 8,580,907.39 × 3,605,048.09 - Step 4: Simplify right side
6,218,036.20x = 30,934,583,796,786.39 - Step 5: Solve for x
x = 30,934,583,796,786.39/6,218,036.20 - Step 6: Final answer
x = 4,974,976.47
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1.5x scale
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.