Finding the Fourth Proportional to 5,172,129.86, 7,746,237.02 and 4,992,768.52
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Solution
The fourth proportional to 5,172,129.86, 7,746,237.02 and 4,992,768.52 is: 7,477,609.69
Step by Step Solution
- Step 1: Write the proportion equation
5,172,129.86 : 7,746,237.02 = 4,992,768.52 : x - Step 2: Convert to fraction form
5,172,129.86/7,746,237.02 = 4,992,768.52/x - Step 3: Cross multiply
5,172,129.86x = 7,746,237.02 × 4,992,768.52 - Step 4: Simplify right side
5,172,129.86x = 38,675,168,341,914.60 - Step 5: Solve for x
x = 38,675,168,341,914.60/5,172,129.86 - Step 6: Final answer
x = 7,477,609.69
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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.