Finding the Fourth Proportional to 31,436,516.15, 43,382,394.37 and 17,497,572.12
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Solution
The fourth proportional to 31,436,516.15, 43,382,394.37 and 17,497,572.12 is: 24,146,650.68
Step by Step Solution
- Step 1: Write the proportion equation
31,436,516.15 : 43,382,394.37 = 17,497,572.12 : x - Step 2: Convert to fraction form
31,436,516.15/43,382,394.37 = 17,497,572.12/x - Step 3: Cross multiply
31,436,516.15x = 43,382,394.37 × 17,497,572.12 - Step 4: Simplify right side
31,436,516.15x = 759,086,574,227,357 - Step 5: Solve for x
x = 759,086,574,227,357/31,436,516.15 - Step 6: Final answer
x = 24,146,650.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.