Finding the Fourth Proportional to 21,544,478.62, 29,731,336.94 and 11,754,917.14
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Solution
The fourth proportional to 21,544,478.62, 29,731,336.94 and 11,754,917.14 is: 16,221,761.89
Step by Step Solution
- Step 1: Write the proportion equation
21,544,478.62 : 29,731,336.94 = 11,754,917.14 : x - Step 2: Convert to fraction form
21,544,478.62/29,731,336.94 = 11,754,917.14/x - Step 3: Cross multiply
21,544,478.62x = 29,731,336.94 × 11,754,917.14 - Step 4: Simplify right side
21,544,478.62x = 349,489,402,191,121.19 - Step 5: Solve for x
x = 349,489,402,191,121.19/21,544,478.62 - Step 6: Final answer
x = 16,221,761.89
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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.