Finding the Fourth Proportional to 163,127,891.49, 225,135,659.34 and 91,612,526.19
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Solution
The fourth proportional to 163,127,891.49, 225,135,659.34 and 91,612,526.19 is: 126,436,051.49
Step by Step Solution
- Step 1: Write the proportion equation
163,127,891.49 : 225,135,659.34 = 91,612,526.19 : x - Step 2: Convert to fraction form
163,127,891.49/225,135,659.34 = 91,612,526.19/x - Step 3: Cross multiply
163,127,891.49x = 225,135,659.34 × 91,612,526.19 - Step 4: Simplify right side
163,127,891.49x = 20,625,246,487,588,668 - Step 5: Solve for x
x = 20,625,246,487,588,668/163,127,891.49 - Step 6: Final answer
x = 126,436,051.49
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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.