Finding the Fourth Proportional to 263,168,117.20, 394,752,175.80 and 258,689,141.20
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Solution
The fourth proportional to 263,168,117.20, 394,752,175.80 and 258,689,141.20 is: 388,033,711.80
Step by Step Solution
- Step 1: Write the proportion equation
263,168,117.20 : 394,752,175.80 = 258,689,141.20 : x - Step 2: Convert to fraction form
263,168,117.20/394,752,175.80 = 258,689,141.20/x - Step 3: Cross multiply
263,168,117.20x = 394,752,175.80 × 258,689,141.20 - Step 4: Simplify right side
263,168,117.20x = 102,118,101,344,533,424 - Step 5: Solve for x
x = 102,118,101,344,533,424/263,168,117.20 - Step 6: Final answer
x = 388,033,711.80
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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.