Finding the Fourth Proportional to 131,328,135.20, 196,992,202.80 and 54,625,671.20
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Solution
The fourth proportional to 131,328,135.20, 196,992,202.80 and 54,625,671.20 is: 81,938,506.80
Step by Step Solution
- Step 1: Write the proportion equation
131,328,135.20 : 196,992,202.80 = 54,625,671.20 : x - Step 2: Convert to fraction form
131,328,135.20/196,992,202.80 = 54,625,671.20/x - Step 3: Cross multiply
131,328,135.20x = 196,992,202.80 × 54,625,671.20 - Step 4: Simplify right side
131,328,135.20x = 10,760,831,299,116,520 - Step 5: Solve for x
x = 10,760,831,299,116,520/131,328,135.20 - Step 6: Final answer
x = 81,938,506.80
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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.