Finding the Fourth Proportional to 285,121,254.07, 393,467,494.35 and 154,741,062.07
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Solution
The fourth proportional to 285,121,254.07, 393,467,494.35 and 154,741,062.07 is: 213,542,754.52
Step by Step Solution
- Step 1: Write the proportion equation
285,121,254.07 : 393,467,494.35 = 154,741,062.07 : x - Step 2: Convert to fraction form
285,121,254.07/393,467,494.35 = 154,741,062.07/x - Step 3: Cross multiply
285,121,254.07x = 393,467,494.35 × 154,741,062.07 - Step 4: Simplify right side
285,121,254.07x = 60,885,577,965,740,728 - Step 5: Solve for x
x = 60,885,577,965,740,728/285,121,254.07 - Step 6: Final answer
x = 213,542,754.52
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1.5x scale
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.