Finding the Fourth Proportional to 314,548,159.11, 471,821,989.43 and 84,517,243.76
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Solution
The fourth proportional to 314,548,159.11, 471,821,989.43 and 84,517,243.76 is: 126,775,798.68
Step by Step Solution
- Step 1: Write the proportion equation
314,548,159.11 : 471,821,989.43 = 84,517,243.76 : x - Step 2: Convert to fraction form
314,548,159.11/471,821,989.43 = 84,517,243.76/x - Step 3: Cross multiply
314,548,159.11x = 471,821,989.43 × 84,517,243.76 - Step 4: Simplify right side
314,548,159.11x = 39,877,094,093,374,304 - Step 5: Solve for x
x = 39,877,094,093,374,304/314,548,159.11 - Step 6: Final answer
x = 126,775,798.68
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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.