Finding the Fourth Proportional to 13,614,522.08, 18,787,694.28 and 7,419,728.12
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Solution
The fourth proportional to 13,614,522.08, 18,787,694.28 and 7,419,728.12 is: 10,239,036.14
Step by Step Solution
- Step 1: Write the proportion equation
13,614,522.08 : 18,787,694.28 = 7,419,728.12 : x - Step 2: Convert to fraction form
13,614,522.08/18,787,694.28 = 7,419,728.12/x - Step 3: Cross multiply
13,614,522.08x = 18,787,694.28 × 7,419,728.12 - Step 4: Simplify right side
13,614,522.08x = 139,399,583,559,279.17 - Step 5: Solve for x
x = 139,399,583,559,279.17/13,614,522.08 - Step 6: Final answer
x = 10,239,036.14
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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.