Finding the Fourth Proportional to 12,219,585.19, 18,331,738.12 and 4,645,962.07
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Solution
The fourth proportional to 12,219,585.19, 18,331,738.12 and 4,645,962.07 is: 6,969,840.52
Step by Step Solution
- Step 1: Write the proportion equation
12,219,585.19 : 18,331,738.12 = 4,645,962.07 : x - Step 2: Convert to fraction form
12,219,585.19/18,331,738.12 = 4,645,962.07/x - Step 3: Cross multiply
12,219,585.19x = 18,331,738.12 × 4,645,962.07 - Step 4: Simplify right side
12,219,585.19x = 85,168,559,942,671.22 - Step 5: Solve for x
x = 85,168,559,942,671.22/12,219,585.19 - Step 6: Final answer
x = 6,969,840.52
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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.