Finding the Fourth Proportional to 7,436,805.75, 11,157,074.87 and 2,118,021.75
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Solution
The fourth proportional to 7,436,805.75, 11,157,074.87 and 2,118,021.75 is: 3,177,564.14
Step by Step Solution
- Step 1: Write the proportion equation
7,436,805.75 : 11,157,074.87 = 2,118,021.75 : x - Step 2: Convert to fraction form
7,436,805.75/11,157,074.87 = 2,118,021.75/x - Step 3: Cross multiply
7,436,805.75x = 11,157,074.87 × 2,118,021.75 - Step 4: Simplify right side
7,436,805.75x = 23,630,927,230,448.31 - Step 5: Solve for x
x = 23,630,927,230,448.31/7,436,805.75 - Step 6: Final answer
x = 3,177,564.14
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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.