Finding the Fourth Proportional to 30,354,631.46, 41,889,516.76 and 16,415,986.26
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Solution
The fourth proportional to 30,354,631.46, 41,889,516.76 and 16,415,986.26 is: 22,654,128.82
Step by Step Solution
- Step 1: Write the proportion equation
30,354,631.46 : 41,889,516.76 = 16,415,986.26 : x - Step 2: Convert to fraction form
30,354,631.46/41,889,516.76 = 16,415,986.26/x - Step 3: Cross multiply
30,354,631.46x = 41,889,516.76 × 16,415,986.26 - Step 4: Simplify right side
30,354,631.46x = 687,657,731,278,672.25 - Step 5: Solve for x
x = 687,657,731,278,672.25/30,354,631.46 - Step 6: Final answer
x = 22,654,128.82
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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.