Finding the Fourth Proportional to 19,876,771.72, 29,815,821.88 and 5,498,635.48
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Solution
The fourth proportional to 19,876,771.72, 29,815,821.88 and 5,498,635.48 is: 8,248,136.99
Step by Step Solution
- Step 1: Write the proportion equation
19,876,771.72 : 29,815,821.88 = 5,498,635.48 : x - Step 2: Convert to fraction form
19,876,771.72/29,815,821.88 = 5,498,635.48/x - Step 3: Cross multiply
19,876,771.72x = 29,815,821.88 × 5,498,635.48 - Step 4: Simplify right side
19,876,771.72x = 163,946,336,054,728.31 - Step 5: Solve for x
x = 163,946,336,054,728.31/19,876,771.72 - Step 6: Final answer
x = 8,248,136.99
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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.