Finding the Fourth Proportional to 7,618,543.36, 10,513,893.09 and 4,180,907.41
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Solution
The fourth proportional to 7,618,543.36, 10,513,893.09 and 4,180,907.41 is: 5,769,818.65
Step by Step Solution
- Step 1: Write the proportion equation
7,618,543.36 : 10,513,893.09 = 4,180,907.41 : x - Step 2: Convert to fraction form
7,618,543.36/10,513,893.09 = 4,180,907.41/x - Step 3: Cross multiply
7,618,543.36x = 10,513,893.09 × 4,180,907.41 - Step 4: Simplify right side
7,618,543.36x = 43,957,613,527,928.80 - Step 5: Solve for x
x = 43,957,613,527,928.80/7,618,543.36 - Step 6: Final answer
x = 5,769,818.65
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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.