Finding the Fourth Proportional to 21,673,201.57, 29,913,363.26 and 12,857,546.07
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Solution
The fourth proportional to 21,673,201.57, 29,913,363.26 and 12,857,546.07 is: 17,745,991.29
Step by Step Solution
- Step 1: Write the proportion equation
21,673,201.57 : 29,913,363.26 = 12,857,546.07 : x - Step 2: Convert to fraction form
21,673,201.57/29,913,363.26 = 12,857,546.07/x - Step 3: Cross multiply
21,673,201.57x = 29,913,363.26 × 12,857,546.07 - Step 4: Simplify right side
21,673,201.57x = 384,612,446,224,095.44 - Step 5: Solve for x
x = 384,612,446,224,095.44/21,673,201.57 - Step 6: Final answer
x = 17,745,991.29
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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.