Finding the Fourth Proportional to 472,393,147.05, 708,589,720.58 and 432,216,207.45
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Solution
The fourth proportional to 472,393,147.05, 708,589,720.58 and 432,216,207.45 is: 648,324,311.18
Step by Step Solution
- Step 1: Write the proportion equation
472,393,147.05 : 708,589,720.58 = 432,216,207.45 : x - Step 2: Convert to fraction form
472,393,147.05/708,589,720.58 = 432,216,207.45/x - Step 3: Cross multiply
472,393,147.05x = 708,589,720.58 × 432,216,207.45 - Step 4: Simplify right side
472,393,147.05x = 306,263,961,664,981,760 - Step 5: Solve for x
x = 306,263,961,664,981,760/472,393,147.05 - Step 6: Final answer
x = 648,324,311.18
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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.