Finding the Fourth Proportional to 11,309,687.70, 15,606,709.09 and 6,347,668.02
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Solution
The fourth proportional to 11,309,687.70, 15,606,709.09 and 6,347,668.02 is: 8,759,411.47
Step by Step Solution
- Step 1: Write the proportion equation
11,309,687.70 : 15,606,709.09 = 6,347,668.02 : x - Step 2: Convert to fraction form
11,309,687.70/15,606,709.09 = 6,347,668.02/x - Step 3: Cross multiply
11,309,687.70x = 15,606,709.09 × 6,347,668.02 - Step 4: Simplify right side
11,309,687.70x = 99,066,208,188,036.30 - Step 5: Solve for x
x = 99,066,208,188,036.30/11,309,687.70 - Step 6: Final answer
x = 8,759,411.47
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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.