Finding the Fourth Proportional to 20,757,741.23, 31,139,583.32 and 6,382,015.94
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Solution
The fourth proportional to 20,757,741.23, 31,139,583.32 and 6,382,015.94 is: 9,573,937.49
Step by Step Solution
- Step 1: Write the proportion equation
20,757,741.23 : 31,139,583.32 = 6,382,015.94 : x - Step 2: Convert to fraction form
20,757,741.23/31,139,583.32 = 6,382,015.94/x - Step 3: Cross multiply
20,757,741.23x = 31,139,583.32 × 6,382,015.94 - Step 4: Simplify right side
20,757,741.23x = 198,733,316,973,455.25 - Step 5: Solve for x
x = 198,733,316,973,455.25/20,757,741.23 - Step 6: Final answer
x = 9,573,937.49
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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.