Finding the Fourth Proportional to 7,213,888.64, 10,822,491.84 and 2,165,294.72
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Solution
The fourth proportional to 7,213,888.64, 10,822,491.84 and 2,165,294.72 is: 3,248,440.00
Step by Step Solution
- Step 1: Write the proportion equation
7,213,888.64 : 10,822,491.84 = 2,165,294.72 : x - Step 2: Convert to fraction form
7,213,888.64/10,822,491.84 = 2,165,294.72/x - Step 3: Cross multiply
7,213,888.64x = 10,822,491.84 × 2,165,294.72 - Step 4: Simplify right side
7,213,888.64x = 23,433,884,438,395.09 - Step 5: Solve for x
x = 23,433,884,438,395.09/7,213,888.64 - Step 6: Final answer
x = 3,248,440.00
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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.