Finding the Fourth Proportional to 135,015,215.28, 186,321,891.60 and 73,135,553.28
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Solution
The fourth proportional to 135,015,215.28, 186,321,891.60 and 73,135,553.28 is: 100,927,548.07
Step by Step Solution
- Step 1: Write the proportion equation
135,015,215.28 : 186,321,891.60 = 73,135,553.28 : x - Step 2: Convert to fraction form
135,015,215.28/186,321,891.60 = 73,135,553.28/x - Step 3: Cross multiply
135,015,215.28x = 186,321,891.60 × 73,135,553.28 - Step 4: Simplify right side
135,015,215.28x = 13,626,754,630,342,184 - Step 5: Solve for x
x = 13,626,754,630,342,184/135,015,215.28 - Step 6: Final answer
x = 100,927,548.07
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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.