Finding the Fourth Proportional to 285,119,727.75, 393,465,224.30 and 154,739,535.75
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Solution
The fourth proportional to 285,119,727.75, 393,465,224.30 and 154,739,535.75 is: 213,540,559.34
Step by Step Solution
- Step 1: Write the proportion equation
285,119,727.75 : 393,465,224.30 = 154,739,535.75 : x - Step 2: Convert to fraction form
285,119,727.75/393,465,224.30 = 154,739,535.75/x - Step 3: Cross multiply
285,119,727.75x = 393,465,224.30 × 154,739,535.75 - Step 4: Simplify right side
285,119,727.75x = 60,884,626,141,177,920 - Step 5: Solve for x
x = 60,884,626,141,177,920/285,119,727.75 - Step 6: Final answer
x = 213,540,559.34
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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.