Finding the Fourth Proportional to 12,176,393.70, 18,265,442.76 and 4,889,852.34
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Solution
The fourth proportional to 12,176,393.70, 18,265,442.76 and 4,889,852.34 is: 7,335,120.74
Step by Step Solution
- Step 1: Write the proportion equation
12,176,393.70 : 18,265,442.76 = 4,889,852.34 : x - Step 2: Convert to fraction form
12,176,393.70/18,265,442.76 = 4,889,852.34/x - Step 3: Cross multiply
12,176,393.70x = 18,265,442.76 × 4,889,852.34 - Step 4: Simplify right side
12,176,393.70x = 89,315,318,021,122.06 - Step 5: Solve for x
x = 89,315,318,021,122.06/12,176,393.70 - Step 6: Final answer
x = 7,335,120.74
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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.