Finding the Fourth Proportional to 14,719,378.80, 20,312,743.68 and 8,192,867.76
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Solution
The fourth proportional to 14,719,378.80, 20,312,743.68 and 8,192,867.76 is: 11,306,158.03
Step by Step Solution
- Step 1: Write the proportion equation
14,719,378.80 : 20,312,743.68 = 8,192,867.76 : x - Step 2: Convert to fraction form
14,719,378.80/20,312,743.68 = 8,192,867.76/x - Step 3: Cross multiply
14,719,378.80x = 20,312,743.68 × 8,192,867.76 - Step 4: Simplify right side
14,719,378.80x = 166,419,622,813,015.75 - Step 5: Solve for x
x = 166,419,622,813,015.75/14,719,378.80 - Step 6: Final answer
x = 11,306,158.03
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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.