Finding the Fourth Proportional to 6,868,167.60, 9,478,107.92 and 4,291,342.68
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Solution
The fourth proportional to 6,868,167.60, 9,478,107.92 and 4,291,342.68 is: 5,922,075.79
Step by Step Solution
- Step 1: Write the proportion equation
6,868,167.60 : 9,478,107.92 = 4,291,342.68 : x - Step 2: Convert to fraction form
6,868,167.60/9,478,107.92 = 4,291,342.68/x - Step 3: Cross multiply
6,868,167.60x = 9,478,107.92 × 4,291,342.68 - Step 4: Simplify right side
6,868,167.60x = 40,673,809,042,742.02 - Step 5: Solve for x
x = 40,673,809,042,742.02/6,868,167.60 - Step 6: Final answer
x = 5,922,075.79
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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.