Finding the Fourth Proportional to 75,269,328.40, 112,903,992.60 and 46,571,514.40
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Solution
The fourth proportional to 75,269,328.40, 112,903,992.60 and 46,571,514.40 is: 69,857,271.60
Step by Step Solution
- Step 1: Write the proportion equation
75,269,328.40 : 112,903,992.60 = 46,571,514.40 : x - Step 2: Convert to fraction form
75,269,328.40/112,903,992.60 = 46,571,514.40/x - Step 3: Cross multiply
75,269,328.40x = 112,903,992.60 × 46,571,514.40 - Step 4: Simplify right side
75,269,328.40x = 5,258,109,917,188,393 - Step 5: Solve for x
x = 5,258,109,917,188,393/75,269,328.40 - Step 6: Final answer
x = 69,857,271.60
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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.