Finding the Fourth Proportional to 19,485,450.20, 29,236,469.70 and 12,302,499.80
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Solution
The fourth proportional to 19,485,450.20, 29,236,469.70 and 12,302,499.80 is: 18,458,986.52
Step by Step Solution
- Step 1: Write the proportion equation
19,485,450.20 : 29,236,469.70 = 12,302,499.80 : x - Step 2: Convert to fraction form
19,485,450.20/29,236,469.70 = 12,302,499.80/x - Step 3: Cross multiply
19,485,450.20x = 29,236,469.70 × 12,302,499.80 - Step 4: Simplify right side
19,485,450.20x = 359,681,662,636,956.06 - Step 5: Solve for x
x = 359,681,662,636,956.06/19,485,450.20 - Step 6: Final answer
x = 18,458,986.52
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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.