Finding the Fourth Proportional to 7,909,608.83, 10,915,346.10 and 4,646,561.09
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Solution
The fourth proportional to 7,909,608.83, 10,915,346.10 and 4,646,561.09 is: 6,412,304.78
Step by Step Solution
- Step 1: Write the proportion equation
7,909,608.83 : 10,915,346.10 = 4,646,561.09 : x - Step 2: Convert to fraction form
7,909,608.83/10,915,346.10 = 4,646,561.09/x - Step 3: Cross multiply
7,909,608.83x = 10,915,346.10 × 4,646,561.09 - Step 4: Simplify right side
7,909,608.83x = 50,718,822,472,143.24 - Step 5: Solve for x
x = 50,718,822,472,143.24/7,909,608.83 - Step 6: Final answer
x = 6,412,304.78
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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.