Finding the Fourth Proportional to 14,235,078.78, 19,644,419.07 and 7,708,715.28
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Solution
The fourth proportional to 14,235,078.78, 19,644,419.07 and 7,708,715.28 is: 10,638,032.69
Step by Step Solution
- Step 1: Write the proportion equation
14,235,078.78 : 19,644,419.07 = 7,708,715.28 : x - Step 2: Convert to fraction form
14,235,078.78/19,644,419.07 = 7,708,715.28/x - Step 3: Cross multiply
14,235,078.78x = 19,644,419.07 × 7,708,715.28 - Step 4: Simplify right side
14,235,078.78x = 151,433,233,451,632.41 - Step 5: Solve for x
x = 151,433,233,451,632.41/14,235,078.78 - Step 6: Final answer
x = 10,638,032.69
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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.