Finding the Fourth Proportional to 6,456,608.74, 8,909,460.84 and 3,975,435.37
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Solution
The fourth proportional to 6,456,608.74, 8,909,460.84 and 3,975,435.37 is: 5,485,694.92
Step by Step Solution
- Step 1: Write the proportion equation
6,456,608.74 : 8,909,460.84 = 3,975,435.37 : x - Step 2: Convert to fraction form
6,456,608.74/8,909,460.84 = 3,975,435.37/x - Step 3: Cross multiply
6,456,608.74x = 8,909,460.84 × 3,975,435.37 - Step 4: Simplify right side
6,456,608.74x = 35,418,985,750,965.91 - Step 5: Solve for x
x = 35,418,985,750,965.91/6,456,608.74 - Step 6: Final answer
x = 5,485,694.92
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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.