Finding the Fourth Proportional to 7,485,499.11, 11,234,547.21 and 7,013,107.11
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Solution
The fourth proportional to 7,485,499.11, 11,234,547.21 and 7,013,107.11 is: 10,525,561.72
Step by Step Solution
- Step 1: Write the proportion equation
7,485,499.11 : 11,234,547.21 = 7,013,107.11 : x - Step 2: Convert to fraction form
7,485,499.11/11,234,547.21 = 7,013,107.11/x - Step 3: Cross multiply
7,485,499.11x = 11,234,547.21 × 7,013,107.11 - Step 4: Simplify right side
7,485,499.11x = 78,789,082,916,081.67 - Step 5: Solve for x
x = 78,789,082,916,081.67/7,485,499.11 - Step 6: Final answer
x = 10,525,561.72
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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.