Finding the Fourth Proportional to 29,966,685.12, 41,354,134.56 and 16,215,649.20
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Solution
The fourth proportional to 29,966,685.12, 41,354,134.56 and 16,215,649.20 is: 22,377,654.93
Step by Step Solution
- Step 1: Write the proportion equation
29,966,685.12 : 41,354,134.56 = 16,215,649.20 : x - Step 2: Convert to fraction form
29,966,685.12/41,354,134.56 = 16,215,649.20/x - Step 3: Cross multiply
29,966,685.12x = 41,354,134.56 × 16,215,649.20 - Step 4: Simplify right side
29,966,685.12x = 670,584,138,994,556.38 - Step 5: Solve for x
x = 670,584,138,994,556.38/29,966,685.12 - Step 6: Final answer
x = 22,377,654.93
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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.