Finding the Fourth Proportional to 5,139,392.86, 7,720,213.29 and 3,341,351.62
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Solution
The fourth proportional to 5,139,392.86, 7,720,213.29 and 3,341,351.62 is: 5,019,259.65
Step by Step Solution
- Step 1: Write the proportion equation
5,139,392.86 : 7,720,213.29 = 3,341,351.62 : x - Step 2: Convert to fraction form
5,139,392.86/7,720,213.29 = 3,341,351.62/x - Step 3: Cross multiply
5,139,392.86x = 7,720,213.29 × 3,341,351.62 - Step 4: Simplify right side
5,139,392.86x = 25,795,947,183,287.03 - Step 5: Solve for x
x = 25,795,947,183,287.03/5,139,392.86 - Step 6: Final answer
x = 5,019,259.65
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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.