Finding the Fourth Proportional to 7,643,905.29, 11,465,857.91 and 2,786,576.06
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Solution
The fourth proportional to 7,643,905.29, 11,465,857.91 and 2,786,576.06 is: 4,179,864.08
Step by Step Solution
- Step 1: Write the proportion equation
7,643,905.29 : 11,465,857.91 = 2,786,576.06 : x - Step 2: Convert to fraction form
7,643,905.29/11,465,857.91 = 2,786,576.06/x - Step 3: Cross multiply
7,643,905.29x = 11,465,857.91 × 2,786,576.06 - Step 4: Simplify right side
7,643,905.29x = 31,950,485,174,099.40 - Step 5: Solve for x
x = 31,950,485,174,099.40/7,643,905.29 - Step 6: Final answer
x = 4,179,864.08
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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.