Finding the Fourth Proportional to 203,664,953.40, 305,497,430.10 and 74,276,784.60
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Solution
The fourth proportional to 203,664,953.40, 305,497,430.10 and 74,276,784.60 is: 111,415,176.90
Step by Step Solution
- Step 1: Write the proportion equation
203,664,953.40 : 305,497,430.10 = 74,276,784.60 : x - Step 2: Convert to fraction form
203,664,953.40/305,497,430.10 = 74,276,784.60/x - Step 3: Cross multiply
203,664,953.40x = 305,497,430.10 × 74,276,784.60 - Step 4: Simplify right side
203,664,953.40x = 22,691,366,811,391,256 - Step 5: Solve for x
x = 22,691,366,811,391,256/203,664,953.40 - Step 6: Final answer
x = 111,415,176.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.