Finding the Fourth Proportional to 43,467,593.20, 65,201,389.80 and 13,171,519.60
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Solution
The fourth proportional to 43,467,593.20, 65,201,389.80 and 13,171,519.60 is: 19,757,279.40
Step by Step Solution
- Step 1: Write the proportion equation
43,467,593.20 : 65,201,389.80 = 13,171,519.60 : x - Step 2: Convert to fraction form
43,467,593.20/65,201,389.80 = 13,171,519.60/x - Step 3: Cross multiply
43,467,593.20x = 65,201,389.80 × 13,171,519.60 - Step 4: Simplify right side
43,467,593.20x = 858,801,383,697,940 - Step 5: Solve for x
x = 858,801,383,697,940/43,467,593.20 - Step 6: Final answer
x = 19,757,279.40
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1.5x scale
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.