Finding the Fourth Proportional to 113,647,768.64, 156,876,569.52 and 74,492,067.68
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Solution
The fourth proportional to 113,647,768.64, 156,876,569.52 and 74,492,067.68 is: 102,827,008.17
Step by Step Solution
- Step 1: Write the proportion equation
113,647,768.64 : 156,876,569.52 = 74,492,067.68 : x - Step 2: Convert to fraction form
113,647,768.64/156,876,569.52 = 74,492,067.68/x - Step 3: Cross multiply
113,647,768.64x = 156,876,569.52 × 74,492,067.68 - Step 4: Simplify right side
113,647,768.64x = 11,686,060,034,090,068 - Step 5: Solve for x
x = 11,686,060,034,090,068/113,647,768.64 - Step 6: Final answer
x = 102,827,008.17
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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.