Finding the Fourth Proportional to 5,191,295.20, 7,783,256.40 and 1,995,186.40
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Solution
The fourth proportional to 5,191,295.20, 7,783,256.40 and 1,995,186.40 is: 2,991,362.79
Step by Step Solution
- Step 1: Write the proportion equation
5,191,295.20 : 7,783,256.40 = 1,995,186.40 : x - Step 2: Convert to fraction form
5,191,295.20/7,783,256.40 = 1,995,186.40/x - Step 3: Cross multiply
5,191,295.20x = 7,783,256.40 × 1,995,186.40 - Step 4: Simplify right side
5,191,295.20x = 15,529,047,316,992.96 - Step 5: Solve for x
x = 15,529,047,316,992.96/5,191,295.20 - Step 6: Final answer
x = 2,991,362.79
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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.