Finding the Fourth Proportional to 13,380,962.57, 18,465,744.74 and 7,269,391.07
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Solution
The fourth proportional to 13,380,962.57, 18,465,744.74 and 7,269,391.07 is: 10,031,768.58
Step by Step Solution
- Step 1: Write the proportion equation
13,380,962.57 : 18,465,744.74 = 7,269,391.07 : x - Step 2: Convert to fraction form
13,380,962.57/18,465,744.74 = 7,269,391.07/x - Step 3: Cross multiply
13,380,962.57x = 18,465,744.74 × 7,269,391.07 - Step 4: Simplify right side
13,380,962.57x = 134,234,719,821,526.75 - Step 5: Solve for x
x = 134,234,719,821,526.75/13,380,962.57 - Step 6: Final answer
x = 10,031,768.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.