Finding the Fourth Proportional to 181,715,863.20, 272,573,794.80 and 84,639,307.20
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Solution
The fourth proportional to 181,715,863.20, 272,573,794.80 and 84,639,307.20 is: 126,958,960.80
Step by Step Solution
- Step 1: Write the proportion equation
181,715,863.20 : 272,573,794.80 = 84,639,307.20 : x - Step 2: Convert to fraction form
181,715,863.20/272,573,794.80 = 84,639,307.20/x - Step 3: Cross multiply
181,715,863.20x = 272,573,794.80 × 84,639,307.20 - Step 4: Simplify right side
181,715,863.20x = 23,070,457,152,746,964 - Step 5: Solve for x
x = 23,070,457,152,746,964/181,715,863.20 - Step 6: Final answer
x = 126,958,960.80
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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.