Finding the Fourth Proportional to 285,119,724.75, 393,465,220.16 and 154,739,532.75
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Solution
The fourth proportional to 285,119,724.75, 393,465,220.16 and 154,739,532.75 is: 213,540,555.20
Step by Step Solution
- Step 1: Write the proportion equation
285,119,724.75 : 393,465,220.16 = 154,739,532.75 : x - Step 2: Convert to fraction form
285,119,724.75/393,465,220.16 = 154,739,532.75/x - Step 3: Cross multiply
285,119,724.75x = 393,465,220.16 × 154,739,532.75 - Step 4: Simplify right side
285,119,724.75x = 60,884,624,320,160,576 - Step 5: Solve for x
x = 60,884,624,320,160,576/285,119,724.75 - Step 6: Final answer
x = 213,540,555.20
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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.