Finding the Fourth Proportional to 21,584,901.36, 29,790,201.82 and 13,741,908.09
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Solution
The fourth proportional to 21,584,901.36, 29,790,201.82 and 13,741,908.09 is: 18,965,767.25
Step by Step Solution
- Step 1: Write the proportion equation
21,584,901.36 : 29,790,201.82 = 13,741,908.09 : x - Step 2: Convert to fraction form
21,584,901.36/29,790,201.82 = 13,741,908.09/x - Step 3: Cross multiply
21,584,901.36x = 29,790,201.82 × 13,741,908.09 - Step 4: Simplify right side
21,584,901.36x = 409,374,215,272,688.75 - Step 5: Solve for x
x = 409,374,215,272,688.75/21,584,901.36 - Step 6: Final answer
x = 18,965,767.25
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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.