Finding the Fourth Proportional to 7,972,716.09, 11,960,974.86 and 2,581,368.14
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Solution
The fourth proportional to 7,972,716.09, 11,960,974.86 and 2,581,368.14 is: 3,872,667.62
Step by Step Solution
- Step 1: Write the proportion equation
7,972,716.09 : 11,960,974.86 = 2,581,368.14 : x - Step 2: Convert to fraction form
7,972,716.09/11,960,974.86 = 2,581,368.14/x - Step 3: Cross multiply
7,972,716.09x = 11,960,974.86 × 2,581,368.14 - Step 4: Simplify right side
7,972,716.09x = 30,875,679,447,167.27 - Step 5: Solve for x
x = 30,875,679,447,167.27/7,972,716.09 - Step 6: Final answer
x = 3,872,667.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.