Finding the Fourth Proportional to 312,714,951.44, 431,367,338.76 and 195,035,977.04
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Solution
The fourth proportional to 312,714,951.44, 431,367,338.76 and 195,035,977.04 is: 269,037,824.99
Step by Step Solution
- Step 1: Write the proportion equation
312,714,951.44 : 431,367,338.76 = 195,035,977.04 : x - Step 2: Convert to fraction form
312,714,951.44/431,367,338.76 = 195,035,977.04/x - Step 3: Cross multiply
312,714,951.44x = 431,367,338.76 × 195,035,977.04 - Step 4: Simplify right side
312,714,951.44x = 84,132,150,378,201,264 - Step 5: Solve for x
x = 84,132,150,378,201,264/312,714,951.44 - Step 6: Final answer
x = 269,037,824.99
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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.