Finding the Fourth Proportional to 287,490,846.80, 431,236,270.20 and 134,435,838.80
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Solution
The fourth proportional to 287,490,846.80, 431,236,270.20 and 134,435,838.80 is: 201,653,758.20
Step by Step Solution
- Step 1: Write the proportion equation
287,490,846.80 : 431,236,270.20 = 134,435,838.80 : x - Step 2: Convert to fraction form
287,490,846.80/431,236,270.20 = 134,435,838.80/x - Step 3: Cross multiply
287,490,846.80x = 431,236,270.20 × 134,435,838.80 - Step 4: Simplify right side
287,490,846.80x = 57,973,609,705,320,448 - Step 5: Solve for x
x = 57,973,609,705,320,448/287,490,846.80 - Step 6: Final answer
x = 201,653,758.20
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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.