Finding the Fourth Proportional to 8,389,187.24, 12,522,536.64 and 7,198,759.40
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Solution
The fourth proportional to 8,389,187.24, 12,522,536.64 and 7,198,759.40 is: 10,745,585.45
Step by Step Solution
- Step 1: Write the proportion equation
8,389,187.24 : 12,522,536.64 = 7,198,759.40 : x - Step 2: Convert to fraction form
8,389,187.24/12,522,536.64 = 7,198,759.40/x - Step 3: Cross multiply
8,389,187.24x = 12,522,536.64 × 7,198,759.40 - Step 4: Simplify right side
8,389,187.24x = 90,146,728,349,044.42 - Step 5: Solve for x
x = 90,146,728,349,044.42/8,389,187.24 - Step 6: Final answer
x = 10,745,585.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.