Finding the Fourth Proportional to 129,929,424.48, 194,918,717.24 and 52,212,378.38
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Solution
The fourth proportional to 129,929,424.48, 194,918,717.24 and 52,212,378.38 is: 78,328,445.30
Step by Step Solution
- Step 1: Write the proportion equation
129,929,424.48 : 194,918,717.24 = 52,212,378.38 : x - Step 2: Convert to fraction form
129,929,424.48/194,918,717.24 = 52,212,378.38/x - Step 3: Cross multiply
129,929,424.48x = 194,918,717.24 × 52,212,378.38 - Step 4: Simplify right side
129,929,424.48x = 10,177,169,817,879,110 - Step 5: Solve for x
x = 10,177,169,817,879,110/129,929,424.48 - Step 6: Final answer
x = 78,328,445.30
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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.