Finding the Fourth Proportional to 472,392,481.70, 708,588,722.55 and 455,173,793.30
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Solution
The fourth proportional to 472,392,481.70, 708,588,722.55 and 455,173,793.30 is: 682,760,689.95
Step by Step Solution
- Step 1: Write the proportion equation
472,392,481.70 : 708,588,722.55 = 455,173,793.30 : x - Step 2: Convert to fraction form
472,392,481.70/708,588,722.55 = 455,173,793.30/x - Step 3: Cross multiply
472,392,481.70x = 708,588,722.55 × 455,173,793.30 - Step 4: Simplify right side
472,392,481.70x = 322,531,016,732,684,736 - Step 5: Solve for x
x = 322,531,016,732,684,736/472,392,481.70 - Step 6: Final answer
x = 682,760,689.95
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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.