Finding the Fourth Proportional to 7,972,890.21, 11,961,240.44 and 2,581,546.68
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Solution
The fourth proportional to 7,972,890.21, 11,961,240.44 and 2,581,546.68 is: 3,872,936.88
Step by Step Solution
- Step 1: Write the proportion equation
7,972,890.21 : 11,961,240.44 = 2,581,546.68 : x - Step 2: Convert to fraction form
7,972,890.21/11,961,240.44 = 2,581,546.68/x - Step 3: Cross multiply
7,972,890.21x = 11,961,240.44 × 2,581,546.68 - Step 4: Simplify right side
7,972,890.21x = 30,878,500,533,656.01 - Step 5: Solve for x
x = 30,878,500,533,656.01/7,972,890.21 - Step 6: Final answer
x = 3,872,936.88
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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.