Finding the Fourth Proportional to 13,816,286.16, 19,066,138.20 and 7,621,197.23
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Solution
The fourth proportional to 13,816,286.16, 19,066,138.20 and 7,621,197.23 is: 10,517,066.45
Step by Step Solution
- Step 1: Write the proportion equation
13,816,286.16 : 19,066,138.20 = 7,621,197.23 : x - Step 2: Convert to fraction form
13,816,286.16/19,066,138.20 = 7,621,197.23/x - Step 3: Cross multiply
13,816,286.16x = 19,066,138.20 × 7,621,197.23 - Step 4: Simplify right side
13,816,286.16x = 145,306,799,609,248.22 - Step 5: Solve for x
x = 145,306,799,609,248.22/13,816,286.16 - Step 6: Final answer
x = 10,517,066.45
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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.