Finding the Fourth Proportional to 115,321,220.98, 159,143,181.18 and 65,096,013.70
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Solution
The fourth proportional to 115,321,220.98, 159,143,181.18 and 65,096,013.70 is: 89,832,440.33
Step by Step Solution
- Step 1: Write the proportion equation
115,321,220.98 : 159,143,181.18 = 65,096,013.70 : x - Step 2: Convert to fraction form
115,321,220.98/159,143,181.18 = 65,096,013.70/x - Step 3: Cross multiply
115,321,220.98x = 159,143,181.18 × 65,096,013.70 - Step 4: Simplify right side
115,321,220.98x = 10,359,586,702,354,864 - Step 5: Solve for x
x = 10,359,586,702,354,864/115,321,220.98 - Step 6: Final answer
x = 89,832,440.33
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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.