Finding the Fourth Proportional to 352,427,139.17, 486,320,980.88 and 203,757,842.55
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Solution
The fourth proportional to 352,427,139.17, 486,320,980.88 and 203,757,842.55 is: 281,169,361.94
Step by Step Solution
- Step 1: Write the proportion equation
352,427,139.17 : 486,320,980.88 = 203,757,842.55 : x - Step 2: Convert to fraction form
352,427,139.17/486,320,980.88 = 203,757,842.55/x - Step 3: Cross multiply
352,427,139.17x = 486,320,980.88 × 203,757,842.55 - Step 4: Simplify right side
352,427,139.17x = 99,091,713,849,889,824 - Step 5: Solve for x
x = 99,091,713,849,889,824/352,427,139.17 - Step 6: Final answer
x = 281,169,361.94
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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.