Finding the Fourth Proportional to 136,785,298.91, 205,190,561.57 and 44,669,519.75
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Solution
The fourth proportional to 136,785,298.91, 205,190,561.57 and 44,669,519.75 is: 67,008,398.68
Step by Step Solution
- Step 1: Write the proportion equation
136,785,298.91 : 205,190,561.57 = 44,669,519.75 : x - Step 2: Convert to fraction form
136,785,298.91/205,190,561.57 = 44,669,519.75/x - Step 3: Cross multiply
136,785,298.91x = 205,190,561.57 × 44,669,519.75 - Step 4: Simplify right side
136,785,298.91x = 9,165,763,842,419,892 - Step 5: Solve for x
x = 9,165,763,842,419,892/136,785,298.91 - Step 6: Final answer
x = 67,008,398.68
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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.