Finding the Fourth Proportional to 84,013,241.52, 125,851,769.36 and 66,770,539.84
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Solution
The fourth proportional to 84,013,241.52, 125,851,769.36 and 66,770,539.84 is: 100,022,215.88
Step by Step Solution
- Step 1: Write the proportion equation
84,013,241.52 : 125,851,769.36 = 66,770,539.84 : x - Step 2: Convert to fraction form
84,013,241.52/125,851,769.36 = 66,770,539.84/x - Step 3: Cross multiply
84,013,241.52x = 125,851,769.36 × 66,770,539.84 - Step 4: Simplify right side
84,013,241.52x = 8,403,190,579,986,372 - Step 5: Solve for x
x = 8,403,190,579,986,372/84,013,241.52 - Step 6: Final answer
x = 100,022,215.88
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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.