Finding the Fourth Proportional to 13,890,198.14, 19,168,607.69 and 7,695,376.46
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Solution
The fourth proportional to 13,890,198.14, 19,168,607.69 and 7,695,376.46 is: 10,619,693.90
Step by Step Solution
- Step 1: Write the proportion equation
13,890,198.14 : 19,168,607.69 = 7,695,376.46 : x - Step 2: Convert to fraction form
13,890,198.14/19,168,607.69 = 7,695,376.46/x - Step 3: Cross multiply
13,890,198.14x = 19,168,607.69 × 7,695,376.46 - Step 4: Simplify right side
13,890,198.14x = 147,509,652,388,601 - Step 5: Solve for x
x = 147,509,652,388,601/13,890,198.14 - Step 6: Final answer
x = 10,619,693.90
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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.