Finding the Fourth Proportional to 10,119,894.14, 15,165,669.18 and 5,320,391.42
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Solution
The fourth proportional to 10,119,894.14, 15,165,669.18 and 5,320,391.42 is: 7,973,136.39
Step by Step Solution
- Step 1: Write the proportion equation
10,119,894.14 : 15,165,669.18 = 5,320,391.42 : x - Step 2: Convert to fraction form
10,119,894.14/15,165,669.18 = 5,320,391.42/x - Step 3: Cross multiply
10,119,894.14x = 15,165,669.18 × 5,320,391.42 - Step 4: Simplify right side
10,119,894.14x = 80,687,296,183,830.44 - Step 5: Solve for x
x = 80,687,296,183,830.44/10,119,894.14 - Step 6: Final answer
x = 7,973,136.39
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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.