Finding the Fourth Proportional to 120,401,696.97, 180,678,128.18 and 112,654,468.17
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Solution
The fourth proportional to 120,401,696.97, 180,678,128.18 and 112,654,468.17 is: 169,052,421.62
Step by Step Solution
- Step 1: Write the proportion equation
120,401,696.97 : 180,678,128.18 = 112,654,468.17 : x - Step 2: Convert to fraction form
120,401,696.97/180,678,128.18 = 112,654,468.17/x - Step 3: Cross multiply
120,401,696.97x = 180,678,128.18 × 112,654,468.17 - Step 4: Simplify right side
120,401,696.97x = 20,354,198,439,505,720 - Step 5: Solve for x
x = 20,354,198,439,505,720/120,401,696.97 - Step 6: Final answer
x = 169,052,421.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.