Finding the Fourth Proportional to 9,431,106.75, 13,014,927.45 and 5,138,754.75
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Solution
The fourth proportional to 9,431,106.75, 13,014,927.45 and 5,138,754.75 is: 7,091,481.63
Step by Step Solution
- Step 1: Write the proportion equation
9,431,106.75 : 13,014,927.45 = 5,138,754.75 : x - Step 2: Convert to fraction form
9,431,106.75/13,014,927.45 = 5,138,754.75/x - Step 3: Cross multiply
9,431,106.75x = 13,014,927.45 × 5,138,754.75 - Step 4: Simplify right side
9,431,106.75x = 66,880,520,254,592.88 - Step 5: Solve for x
x = 66,880,520,254,592.88/9,431,106.75 - Step 6: Final answer
x = 7,091,481.63
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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.