Finding the Fourth Proportional to 308,160,845.80, 462,241,268.70 and 103,620,941.80
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Solution
The fourth proportional to 308,160,845.80, 462,241,268.70 and 103,620,941.80 is: 155,431,412.70
Step by Step Solution
- Step 1: Write the proportion equation
308,160,845.80 : 462,241,268.70 = 103,620,941.80 : x - Step 2: Convert to fraction form
308,160,845.80/462,241,268.70 = 103,620,941.80/x - Step 3: Cross multiply
308,160,845.80x = 462,241,268.70 × 103,620,941.80 - Step 4: Simplify right side
308,160,845.80x = 47,897,875,601,520,856 - Step 5: Solve for x
x = 47,897,875,601,520,856/308,160,845.80 - Step 6: Final answer
x = 155,431,412.70
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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.