Finding the Fourth Proportional to 870,156,959.58, 1,305,278,729.84 and 248,464,434.62
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Solution
The fourth proportional to 870,156,959.58, 1,305,278,729.84 and 248,464,434.62 is: 372,709,013.08
Step by Step Solution
- Step 1: Write the proportion equation
870,156,959.58 : 1,305,278,729.84 = 248,464,434.62 : x - Step 2: Convert to fraction form
870,156,959.58/1,305,278,729.84 = 248,464,434.62/x - Step 3: Cross multiply
870,156,959.58x = 1,305,278,729.84 × 248,464,434.62 - Step 4: Simplify right side
870,156,959.58x = 324,315,341,632,033,728 - Step 5: Solve for x
x = 324,315,341,632,033,728/870,156,959.58 - Step 6: Final answer
x = 372,709,013.08
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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.