Finding the Fourth Proportional to 84,251,011.80, 126,376,517.70 and 84,251,011.80
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Solution
The fourth proportional to 84,251,011.80, 126,376,517.70 and 84,251,011.80 is: 126,376,517.70
Step by Step Solution
- Step 1: Write the proportion equation
84,251,011.80 : 126,376,517.70 = 84,251,011.80 : x - Step 2: Convert to fraction form
84,251,011.80/126,376,517.70 = 84,251,011.80/x - Step 3: Cross multiply
84,251,011.80x = 126,376,517.70 × 84,251,011.80 - Step 4: Simplify right side
84,251,011.80x = 10,647,349,483,985,608 - Step 5: Solve for x
x = 10,647,349,483,985,608/84,251,011.80 - Step 6: Final answer
x = 126,376,517.70
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1.5x scale
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.