Finding the Fourth Proportional to 21,649,208.16, 29,868,877.79 and 14,761,732.80
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Solution
The fourth proportional to 21,649,208.16, 29,868,877.79 and 14,761,732.80 is: 20,366,398.14
Step by Step Solution
- Step 1: Write the proportion equation
21,649,208.16 : 29,868,877.79 = 14,761,732.80 : x - Step 2: Convert to fraction form
21,649,208.16/29,868,877.79 = 14,761,732.80/x - Step 3: Cross multiply
21,649,208.16x = 29,868,877.79 × 14,761,732.80 - Step 4: Simplify right side
21,649,208.16x = 440,916,392,898,025.88 - Step 5: Solve for x
x = 440,916,392,898,025.88/21,649,208.16 - Step 6: Final answer
x = 20,366,398.14
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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.