Finding the Fourth Proportional to 263,381,828.51, 363,440,434.46 and 145,885,205.68
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Solution
The fourth proportional to 263,381,828.51, 363,440,434.46 and 145,885,205.68 is: 201,306,911.84
Step by Step Solution
- Step 1: Write the proportion equation
263,381,828.51 : 363,440,434.46 = 145,885,205.68 : x - Step 2: Convert to fraction form
263,381,828.51/363,440,434.46 = 145,885,205.68/x - Step 3: Cross multiply
263,381,828.51x = 363,440,434.46 × 145,885,205.68 - Step 4: Simplify right side
263,381,828.51x = 53,020,582,531,987,632 - Step 5: Solve for x
x = 53,020,582,531,987,632/263,381,828.51 - Step 6: Final answer
x = 201,306,911.84
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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.