Finding the Fourth Proportional to 252,306,115.76, 378,457,585.53 and 135,776,362.63
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Solution
The fourth proportional to 252,306,115.76, 378,457,585.53 and 135,776,362.63 is: 203,663,689.32
Step by Step Solution
- Step 1: Write the proportion equation
252,306,115.76 : 378,457,585.53 = 135,776,362.63 : x - Step 2: Convert to fraction form
252,306,115.76/378,457,585.53 = 135,776,362.63/x - Step 3: Cross multiply
252,306,115.76x = 378,457,585.53 × 135,776,362.63 - Step 4: Simplify right side
252,306,115.76x = 51,385,594,372,995,512 - Step 5: Solve for x
x = 51,385,594,372,995,512/252,306,115.76 - Step 6: Final answer
x = 203,663,689.32
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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.