Finding the Fourth Proportional to 131,495,640.20, 197,243,460.30 and 54,873,657.80
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Solution
The fourth proportional to 131,495,640.20, 197,243,460.30 and 54,873,657.80 is: 82,310,486.70
Step by Step Solution
- Step 1: Write the proportion equation
131,495,640.20 : 197,243,460.30 = 54,873,657.80 : x - Step 2: Convert to fraction form
131,495,640.20/197,243,460.30 = 54,873,657.80/x - Step 3: Cross multiply
131,495,640.20x = 197,243,460.30 × 54,873,657.80 - Step 4: Simplify right side
131,495,640.20x = 10,823,470,143,790,086 - Step 5: Solve for x
x = 10,823,470,143,790,086/131,495,640.20 - Step 6: Final answer
x = 82,310,486.70
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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.