Finding the Fourth Proportional to 81,207,617.10, 121,811,425.65 and 40,251,230.70
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Solution
The fourth proportional to 81,207,617.10, 121,811,425.65 and 40,251,230.70 is: 60,376,846.05
Step by Step Solution
- Step 1: Write the proportion equation
81,207,617.10 : 121,811,425.65 = 40,251,230.70 : x - Step 2: Convert to fraction form
81,207,617.10/121,811,425.65 = 40,251,230.70/x - Step 3: Cross multiply
81,207,617.10x = 121,811,425.65 × 40,251,230.70 - Step 4: Simplify right side
81,207,617.10x = 4,903,059,795,734,048 - Step 5: Solve for x
x = 4,903,059,795,734,048/81,207,617.10 - Step 6: Final answer
x = 60,376,846.05
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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.