Finding the Fourth Proportional to 87,393,395.80, 120,603,129.69 and 47,701,284.94
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Solution
The fourth proportional to 87,393,395.80, 120,603,129.69 and 47,701,284.94 is: 65,827,906.12
Step by Step Solution
- Step 1: Write the proportion equation
87,393,395.80 : 120,603,129.69 = 47,701,284.94 : x - Step 2: Convert to fraction form
87,393,395.80/120,603,129.69 = 47,701,284.94/x - Step 3: Cross multiply
87,393,395.80x = 120,603,129.69 × 47,701,284.94 - Step 4: Simplify right side
87,393,395.80x = 5,752,924,253,998,463 - Step 5: Solve for x
x = 5,752,924,253,998,463/87,393,395.80 - Step 6: Final answer
x = 65,827,906.12
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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.