Finding the Fourth Proportional to 5,157,279.99, 7,737,466.82 and 2,081,688.21
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Solution
The fourth proportional to 5,157,279.99, 7,737,466.82 and 2,081,688.21 is: 3,123,156.68
Step by Step Solution
- Step 1: Write the proportion equation
5,157,279.99 : 7,737,466.82 = 2,081,688.21 : x - Step 2: Convert to fraction form
5,157,279.99/7,737,466.82 = 2,081,688.21/x - Step 3: Cross multiply
5,157,279.99x = 7,737,466.82 × 2,081,688.21 - Step 4: Simplify right side
5,157,279.99x = 16,106,993,444,051.75 - Step 5: Solve for x
x = 16,106,993,444,051.75/5,157,279.99 - Step 6: Final answer
x = 3,123,156.68
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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.