Finding the Fourth Proportional to 278,941,804.67, 418,473,236.06 and 84,848,175.31
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Solution
The fourth proportional to 278,941,804.67, 418,473,236.06 and 84,848,175.31 is: 127,290,674.62
Step by Step Solution
- Step 1: Write the proportion equation
278,941,804.67 : 418,473,236.06 = 84,848,175.31 : x - Step 2: Convert to fraction form
278,941,804.67/418,473,236.06 = 84,848,175.31/x - Step 3: Cross multiply
278,941,804.67x = 418,473,236.06 × 84,848,175.31 - Step 4: Simplify right side
278,941,804.67x = 35,506,690,494,609,652 - Step 5: Solve for x
x = 35,506,690,494,609,652/278,941,804.67 - Step 6: Final answer
x = 127,290,674.62
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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.