Finding the Fourth Proportional to 209,040,035.80, 313,560,053.70 and 72,725,419.30
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Solution
The fourth proportional to 209,040,035.80, 313,560,053.70 and 72,725,419.30 is: 109,088,128.95
Step by Step Solution
- Step 1: Write the proportion equation
209,040,035.80 : 313,560,053.70 = 72,725,419.30 : x - Step 2: Convert to fraction form
209,040,035.80/313,560,053.70 = 72,725,419.30/x - Step 3: Cross multiply
209,040,035.80x = 313,560,053.70 × 72,725,419.30 - Step 4: Simplify right side
209,040,035.80x = 22,803,786,381,063,016 - Step 5: Solve for x
x = 22,803,786,381,063,016/209,040,035.80 - Step 6: Final answer
x = 109,088,128.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.