Finding the Fourth Proportional to 38,079,143.91, 57,126,910.07 and 11,817,460.99
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Solution
The fourth proportional to 38,079,143.91, 57,126,910.07 and 11,817,460.99 is: 17,728,734.47
Step by Step Solution
- Step 1: Write the proportion equation
38,079,143.91 : 57,126,910.07 = 11,817,460.99 : x - Step 2: Convert to fraction form
38,079,143.91/57,126,910.07 = 11,817,460.99/x - Step 3: Cross multiply
38,079,143.91x = 57,126,910.07 × 11,817,460.99 - Step 4: Simplify right side
38,079,143.91x = 675,095,031,379,505.25 - Step 5: Solve for x
x = 675,095,031,379,505.25/38,079,143.91 - Step 6: Final answer
x = 17,728,734.47
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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.