Finding the Fourth Proportional to 12,212,779.39, 18,315,104.68 and 4,924,356.65
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Solution
The fourth proportional to 12,212,779.39, 18,315,104.68 and 4,924,356.65 is: 7,384,896.14
Step by Step Solution
- Step 1: Write the proportion equation
12,212,779.39 : 18,315,104.68 = 4,924,356.65 : x - Step 2: Convert to fraction form
12,212,779.39/18,315,104.68 = 4,924,356.65/x - Step 3: Cross multiply
12,212,779.39x = 18,315,104.68 × 4,924,356.65 - Step 4: Simplify right side
12,212,779.39x = 90,190,107,413,284.53 - Step 5: Solve for x
x = 90,190,107,413,284.53/12,212,779.39 - Step 6: Final answer
x = 7,384,896.14
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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.