Finding the Fourth Proportional to 7,647,643.52, 11,471,586.93 and 4,257,478.18
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Solution
The fourth proportional to 7,647,643.52, 11,471,586.93 and 4,257,478.18 is: 6,386,284.99
Step by Step Solution
- Step 1: Write the proportion equation
7,647,643.52 : 11,471,586.93 = 4,257,478.18 : x - Step 2: Convert to fraction form
7,647,643.52/11,471,586.93 = 4,257,478.18/x - Step 3: Cross multiply
7,647,643.52x = 11,471,586.93 × 4,257,478.18 - Step 4: Simplify right side
7,647,643.52x = 48,840,031,015,769.22 - Step 5: Solve for x
x = 48,840,031,015,769.22/7,647,643.52 - Step 6: Final answer
x = 6,386,284.99
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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.