Finding the Fourth Proportional to 5,629,788.86, 7,768,919.64 and 3,336,588.14
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Solution
The fourth proportional to 5,629,788.86, 7,768,919.64 and 3,336,588.14 is: 4,604,379.63
Step by Step Solution
- Step 1: Write the proportion equation
5,629,788.86 : 7,768,919.64 = 3,336,588.14 : x - Step 2: Convert to fraction form
5,629,788.86/7,768,919.64 = 3,336,588.14/x - Step 3: Cross multiply
5,629,788.86x = 7,768,919.64 × 3,336,588.14 - Step 4: Simplify right side
5,629,788.86x = 25,921,685,131,437.07 - Step 5: Solve for x
x = 25,921,685,131,437.07/5,629,788.86 - Step 6: Final answer
x = 4,604,379.63
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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.