Finding the Fourth Proportional to 209,835,266.70, 289,567,554.36 and 115,747,353.58
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Solution
The fourth proportional to 209,835,266.70, 289,567,554.36 and 115,747,353.58 is: 159,728,527.18
Step by Step Solution
- Step 1: Write the proportion equation
209,835,266.70 : 289,567,554.36 = 115,747,353.58 : x - Step 2: Convert to fraction form
209,835,266.70/289,567,554.36 = 115,747,353.58/x - Step 3: Cross multiply
209,835,266.70x = 289,567,554.36 × 115,747,353.58 - Step 4: Simplify right side
209,835,266.70x = 33,516,678,099,802,792 - Step 5: Solve for x
x = 33,516,678,099,802,792/209,835,266.70 - Step 6: Final answer
x = 159,728,527.18
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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.