Finding the Fourth Proportional to 251,266,419.87, 346,742,687.03 and 139,754,861.97
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Solution
The fourth proportional to 251,266,419.87, 346,742,687.03 and 139,754,861.97 is: 192,858,943.86
Step by Step Solution
- Step 1: Write the proportion equation
251,266,419.87 : 346,742,687.03 = 139,754,861.97 : x - Step 2: Convert to fraction form
251,266,419.87/346,742,687.03 = 139,754,861.97/x - Step 3: Cross multiply
251,266,419.87x = 346,742,687.03 × 139,754,861.97 - Step 4: Simplify right side
251,266,419.87x = 48,458,976,364,285,784 - Step 5: Solve for x
x = 48,458,976,364,285,784/251,266,419.87 - Step 6: Final answer
x = 192,858,943.86
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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.