Finding the Fourth Proportional to 113,647,963.40, 156,876,838.26 and 74,492,261.96
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Solution
The fourth proportional to 113,647,963.40, 156,876,838.26 and 74,492,261.96 is: 102,827,276.28
Step by Step Solution
- Step 1: Write the proportion equation
113,647,963.40 : 156,876,838.26 = 74,492,261.96 : x - Step 2: Convert to fraction form
113,647,963.40/156,876,838.26 = 74,492,261.96/x - Step 3: Cross multiply
113,647,963.40x = 156,876,838.26 × 74,492,261.96 - Step 4: Simplify right side
113,647,963.40x = 11,686,110,531,120,468 - Step 5: Solve for x
x = 11,686,110,531,120,468/113,647,963.40 - Step 6: Final answer
x = 102,827,276.28
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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.