Finding the Fourth Proportional to 125,227,145.18, 172,741,661.66 and 78,102,404.29
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Solution
The fourth proportional to 125,227,145.18, 172,741,661.66 and 78,102,404.29 is: 107,736,538.09
Step by Step Solution
- Step 1: Write the proportion equation
125,227,145.18 : 172,741,661.66 = 78,102,404.29 : x - Step 2: Convert to fraction form
125,227,145.18/172,741,661.66 = 78,102,404.29/x - Step 3: Cross multiply
125,227,145.18x = 172,741,661.66 × 78,102,404.29 - Step 4: Simplify right side
125,227,145.18x = 13,491,539,095,441,492 - Step 5: Solve for x
x = 13,491,539,095,441,492/125,227,145.18 - Step 6: Final answer
x = 107,736,538.09
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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.