Finding the Fourth Proportional to 14,212,721.49, 19,613,614.35 and 7,686,350.81
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Solution
The fourth proportional to 14,212,721.49, 19,613,614.35 and 7,686,350.81 is: 10,607,195.86
Step by Step Solution
- Step 1: Write the proportion equation
14,212,721.49 : 19,613,614.35 = 7,686,350.81 : x - Step 2: Convert to fraction form
14,212,721.49/19,613,614.35 = 7,686,350.81/x - Step 3: Cross multiply
14,212,721.49x = 19,613,614.35 × 7,686,350.81 - Step 4: Simplify right side
14,212,721.49x = 150,757,120,546,150.12 - Step 5: Solve for x
x = 150,757,120,546,150.12/14,212,721.49 - Step 6: Final answer
x = 10,607,195.86
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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.