Finding the Fourth Proportional to 5,011,310.78, 6,915,608.93 and 2,719,471.47
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Solution
The fourth proportional to 5,011,310.78, 6,915,608.93 and 2,719,471.47 is: 3,752,870.66
Step by Step Solution
- Step 1: Write the proportion equation
5,011,310.78 : 6,915,608.93 = 2,719,471.47 : x - Step 2: Convert to fraction form
5,011,310.78/6,915,608.93 = 2,719,471.47/x - Step 3: Cross multiply
5,011,310.78x = 6,915,608.93 × 2,719,471.47 - Step 4: Simplify right side
5,011,310.78x = 18,806,801,189,610.91 - Step 5: Solve for x
x = 18,806,801,189,610.91/5,011,310.78 - Step 6: Final answer
x = 3,752,870.66
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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.