Finding the Fourth Proportional to 140,660,843.40, 194,118,886.26 and 84,905,377.56
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Solution
The fourth proportional to 140,660,843.40, 194,118,886.26 and 84,905,377.56 is: 117,173,599.50
Step by Step Solution
- Step 1: Write the proportion equation
140,660,843.40 : 194,118,886.26 = 84,905,377.56 : x - Step 2: Convert to fraction form
140,660,843.40/194,118,886.26 = 84,905,377.56/x - Step 3: Cross multiply
140,660,843.40x = 194,118,886.26 × 84,905,377.56 - Step 4: Simplify right side
140,660,843.40x = 16,481,737,329,431,996 - Step 5: Solve for x
x = 16,481,737,329,431,996/140,660,843.40 - Step 6: Final answer
x = 117,173,599.50
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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.