Finding the Fourth Proportional to 247,382,691.36, 370,751,235.83 and 138,203,452.32
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Solution
The fourth proportional to 247,382,691.36, 370,751,235.83 and 138,203,452.32 is: 207,124,841.52
Step by Step Solution
- Step 1: Write the proportion equation
247,382,691.36 : 370,751,235.83 = 138,203,452.32 : x - Step 2: Convert to fraction form
247,382,691.36/370,751,235.83 = 138,203,452.32/x - Step 3: Cross multiply
247,382,691.36x = 370,751,235.83 × 138,203,452.32 - Step 4: Simplify right side
247,382,691.36x = 51,239,100,743,612,472 - Step 5: Solve for x
x = 51,239,100,743,612,472/247,382,691.36 - Step 6: Final answer
x = 207,124,841.52
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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.