Finding the Fourth Proportional to 5,724,349.24, 7,899,791.40 and 3,146,121.40
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Solution
The fourth proportional to 5,724,349.24, 7,899,791.40 and 3,146,121.40 is: 4,341,751.65
Step by Step Solution
- Step 1: Write the proportion equation
5,724,349.24 : 7,899,791.40 = 3,146,121.40 : x - Step 2: Convert to fraction form
5,724,349.24/7,899,791.40 = 3,146,121.40/x - Step 3: Cross multiply
5,724,349.24x = 7,899,791.40 × 3,146,121.40 - Step 4: Simplify right side
5,724,349.24x = 24,853,702,779,075.96 - Step 5: Solve for x
x = 24,853,702,779,075.96/5,724,349.24 - Step 6: Final answer
x = 4,341,751.65
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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.