Finding the Fourth Proportional to 87,651,130.08, 120,961,122.48 and 47,961,043.68
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Solution
The fourth proportional to 87,651,130.08, 120,961,122.48 and 47,961,043.68 is: 66,187,642.69
Step by Step Solution
- Step 1: Write the proportion equation
87,651,130.08 : 120,961,122.48 = 47,961,043.68 : x - Step 2: Convert to fraction form
87,651,130.08/120,961,122.48 = 47,961,043.68/x - Step 3: Cross multiply
87,651,130.08x = 120,961,122.48 × 47,961,043.68 - Step 4: Simplify right side
87,651,130.08x = 5,801,421,678,845,110 - Step 5: Solve for x
x = 5,801,421,678,845,110/87,651,130.08 - Step 6: Final answer
x = 66,187,642.69
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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.