Finding the Fourth Proportional to 14,212,645.19, 19,613,509.11 and 7,686,274.52
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Solution
The fourth proportional to 14,212,645.19, 19,613,509.11 and 7,686,274.52 is: 10,607,090.60
Step by Step Solution
- Step 1: Write the proportion equation
14,212,645.19 : 19,613,509.11 = 7,686,274.52 : x - Step 2: Convert to fraction form
14,212,645.19/19,613,509.11 = 7,686,274.52/x - Step 3: Cross multiply
14,212,645.19x = 19,613,509.11 × 7,686,274.52 - Step 4: Simplify right side
14,212,645.19x = 150,754,815,183,481.97 - Step 5: Solve for x
x = 150,754,815,183,481.97/14,212,645.19 - Step 6: Final answer
x = 10,607,090.60
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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.