Finding the Fourth Proportional to 252,129,949.04, 347,939,793.96 and 140,627,976.81
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Solution
The fourth proportional to 252,129,949.04, 347,939,793.96 and 140,627,976.81 is: 194,066,866.95
Step by Step Solution
- Step 1: Write the proportion equation
252,129,949.04 : 347,939,793.96 = 140,627,976.81 : x - Step 2: Convert to fraction form
252,129,949.04/347,939,793.96 = 140,627,976.81/x - Step 3: Cross multiply
252,129,949.04x = 347,939,793.96 × 140,627,976.81 - Step 4: Simplify right side
252,129,949.04x = 48,930,069,275,628,936 - Step 5: Solve for x
x = 48,930,069,275,628,936/252,129,949.04 - Step 6: Final answer
x = 194,066,866.95
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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.