Finding the Fourth Proportional to 6,426,446.17, 9,639,329.75 and 2,107,927.54
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Solution
The fourth proportional to 6,426,446.17, 9,639,329.75 and 2,107,927.54 is: 3,161,779.95
Step by Step Solution
- Step 1: Write the proportion equation
6,426,446.17 : 9,639,329.75 = 2,107,927.54 : x - Step 2: Convert to fraction form
6,426,446.17/9,639,329.75 = 2,107,927.54/x - Step 3: Cross multiply
6,426,446.17x = 9,639,329.75 × 2,107,927.54 - Step 4: Simplify right side
6,426,446.17x = 20,319,008,647,166.32 - Step 5: Solve for x
x = 20,319,008,647,166.32/6,426,446.17 - Step 6: Final answer
x = 3,161,779.95
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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.