Finding the Fourth Proportional to 6,163,979.68, 8,505,546.64 and 3,551,338.45
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Solution
The fourth proportional to 6,163,979.68, 8,505,546.64 and 3,551,338.45 is: 4,900,417.65
Step by Step Solution
- Step 1: Write the proportion equation
6,163,979.68 : 8,505,546.64 = 3,551,338.45 : x - Step 2: Convert to fraction form
6,163,979.68/8,505,546.64 = 3,551,338.45/x - Step 3: Cross multiply
6,163,979.68x = 8,505,546.64 × 3,551,338.45 - Step 4: Simplify right side
6,163,979.68x = 30,206,074,820,900.31 - Step 5: Solve for x
x = 30,206,074,820,900.31/6,163,979.68 - Step 6: Final answer
x = 4,900,417.65
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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.