Finding the Fourth Proportional to 285,121,257.08, 393,467,498.50 and 154,741,065.08
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Solution
The fourth proportional to 285,121,257.08, 393,467,498.50 and 154,741,065.08 is: 213,542,758.67
Step by Step Solution
- Step 1: Write the proportion equation
285,121,257.08 : 393,467,498.50 = 154,741,065.08 : x - Step 2: Convert to fraction form
285,121,257.08/393,467,498.50 = 154,741,065.08/x - Step 3: Cross multiply
285,121,257.08x = 393,467,498.50 × 154,741,065.08 - Step 4: Simplify right side
285,121,257.08x = 60,885,579,792,253,304 - Step 5: Solve for x
x = 60,885,579,792,253,304/285,121,257.08 - Step 6: Final answer
x = 213,542,758.67
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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.