Finding the Fourth Proportional to 87,651,134.08, 120,961,128 and 47,961,047.68
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Solution
The fourth proportional to 87,651,134.08, 120,961,128 and 47,961,047.68 is: 66,187,648.21
Step by Step Solution
- Step 1: Write the proportion equation
87,651,134.08 : 120,961,128 = 47,961,047.68 : x - Step 2: Convert to fraction form
87,651,134.08/120,961,128 = 47,961,047.68/x - Step 3: Cross multiply
87,651,134.08x = 120,961,128 × 47,961,047.68 - Step 4: Simplify right side
87,651,134.08x = 5,801,422,427,434,583 - Step 5: Solve for x
x = 5,801,422,427,434,583/87,651,134.08 - Step 6: Final answer
x = 66,187,648.21
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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.