Finding the Fourth Proportional to 13,309,874.58, 18,367,639.02 and 7,198,303.08
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Solution
The fourth proportional to 13,309,874.58, 18,367,639.02 and 7,198,303.08 is: 9,933,664.79
Step by Step Solution
- Step 1: Write the proportion equation
13,309,874.58 : 18,367,639.02 = 7,198,303.08 : x - Step 2: Convert to fraction form
13,309,874.58/18,367,639.02 = 7,198,303.08/x - Step 3: Cross multiply
13,309,874.58x = 18,367,639.02 × 7,198,303.08 - Step 4: Simplify right side
13,309,874.58x = 132,215,832,529,994.19 - Step 5: Solve for x
x = 132,215,832,529,994.19/13,309,874.58 - Step 6: Final answer
x = 9,933,664.79
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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.