Finding the Fourth Proportional to 149,563,382.05, 206,431,904.61 and 87,703,649.65
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Solution
The fourth proportional to 149,563,382.05, 206,431,904.61 and 87,703,649.65 is: 121,051,230.52
Step by Step Solution
- Step 1: Write the proportion equation
149,563,382.05 : 206,431,904.61 = 87,703,649.65 : x - Step 2: Convert to fraction form
149,563,382.05/206,431,904.61 = 87,703,649.65/x - Step 3: Cross multiply
149,563,382.05x = 206,431,904.61 × 87,703,649.65 - Step 4: Simplify right side
149,563,382.05x = 18,104,831,438,755,704 - Step 5: Solve for x
x = 18,104,831,438,755,704/149,563,382.05 - Step 6: Final answer
x = 121,051,230.52
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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.