Finding the Fourth Proportional to 7,320,128.58, 10,101,778.41 and 4,057,153.97
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Solution
The fourth proportional to 7,320,128.58, 10,101,778.41 and 4,057,153.97 is: 5,598,873.02
Step by Step Solution
- Step 1: Write the proportion equation
7,320,128.58 : 10,101,778.41 = 4,057,153.97 : x - Step 2: Convert to fraction form
7,320,128.58/10,101,778.41 = 4,057,153.97/x - Step 3: Cross multiply
7,320,128.58x = 10,101,778.41 × 4,057,153.97 - Step 4: Simplify right side
7,320,128.58x = 40,984,470,401,719.73 - Step 5: Solve for x
x = 40,984,470,401,719.73/7,320,128.58 - Step 6: Final answer
x = 5,598,873.02
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1.5x scale
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.