Finding the Fourth Proportional to 12,305,053.84, 18,445,450.12 and 4,321,279.12
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Solution
The fourth proportional to 12,305,053.84, 18,445,450.12 and 4,321,279.12 is: 6,477,658.65
Step by Step Solution
- Step 1: Write the proportion equation
12,305,053.84 : 18,445,450.12 = 4,321,279.12 : x - Step 2: Convert to fraction form
12,305,053.84/18,445,450.12 = 4,321,279.12/x - Step 3: Cross multiply
12,305,053.84x = 18,445,450.12 × 4,321,279.12 - Step 4: Simplify right side
12,305,053.84x = 79,707,938,462,557.50 - Step 5: Solve for x
x = 79,707,938,462,557.50/12,305,053.84 - Step 6: Final answer
x = 6,477,658.65
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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.