Finding the Fourth Proportional to 79,236,821.70, 118,855,232.55 and 54,577,959.30
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Solution
The fourth proportional to 79,236,821.70, 118,855,232.55 and 54,577,959.30 is: 81,866,938.95
Step by Step Solution
- Step 1: Write the proportion equation
79,236,821.70 : 118,855,232.55 = 54,577,959.30 : x - Step 2: Convert to fraction form
79,236,821.70/118,855,232.55 = 54,577,959.30/x - Step 3: Cross multiply
79,236,821.70x = 118,855,232.55 × 54,577,959.30 - Step 4: Simplify right side
79,236,821.70x = 6,486,876,044,705,935 - Step 5: Solve for x
x = 6,486,876,044,705,935/79,236,821.70 - Step 6: Final answer
x = 81,866,938.95
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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.