Finding the Fourth Proportional to 14,366,137.75, 19,825,691.20 and 7,840,186.81
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Solution
The fourth proportional to 14,366,137.75, 19,825,691.20 and 7,840,186.81 is: 10,819,687.61
Step by Step Solution
- Step 1: Write the proportion equation
14,366,137.75 : 19,825,691.20 = 7,840,186.81 : x - Step 2: Convert to fraction form
14,366,137.75/19,825,691.20 = 7,840,186.81/x - Step 3: Cross multiply
14,366,137.75x = 19,825,691.20 × 7,840,186.81 - Step 4: Simplify right side
14,366,137.75x = 155,437,122,645,373.06 - Step 5: Solve for x
x = 155,437,122,645,373.06/14,366,137.75 - Step 6: Final answer
x = 10,819,687.61
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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.