Finding the Fourth Proportional to 12,219,586.19, 18,331,739.62 and 4,645,963.07
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Solution
The fourth proportional to 12,219,586.19, 18,331,739.62 and 4,645,963.07 is: 6,969,842.02
Step by Step Solution
- Step 1: Write the proportion equation
12,219,586.19 : 18,331,739.62 = 4,645,963.07 : x - Step 2: Convert to fraction form
12,219,586.19/18,331,739.62 = 4,645,963.07/x - Step 3: Cross multiply
12,219,586.19x = 18,331,739.62 × 4,645,963.07 - Step 4: Simplify right side
12,219,586.19x = 85,168,585,283,375.84 - Step 5: Solve for x
x = 85,168,585,283,375.84/12,219,586.19 - Step 6: Final answer
x = 6,969,842.02
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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.