Finding the Fourth Proportional to 195,977,755.20, 270,447,156 and 107,869,869.12
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Solution
The fourth proportional to 195,977,755.20, 270,447,156 and 107,869,869.12 is: 148,859,238.09
Step by Step Solution
- Step 1: Write the proportion equation
195,977,755.20 : 270,447,156 = 107,869,869.12 : x - Step 2: Convert to fraction form
195,977,755.20/270,447,156 = 107,869,869.12/x - Step 3: Cross multiply
195,977,755.20x = 270,447,156 × 107,869,869.12 - Step 4: Simplify right side
195,977,755.20x = 29,173,099,321,596,224 - Step 5: Solve for x
x = 29,173,099,321,596,224/195,977,755.20 - Step 6: Final answer
x = 148,859,238.09
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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.