Finding the Fourth Proportional to 388,135,752.50, 581,863,506.50 and 145,968,717.62
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Solution
The fourth proportional to 388,135,752.50, 581,863,506.50 and 145,968,717.62 is: 218,825,164.45
Step by Step Solution
- Step 1: Write the proportion equation
388,135,752.50 : 581,863,506.50 = 145,968,717.62 : x - Step 2: Convert to fraction form
388,135,752.50/581,863,506.50 = 145,968,717.62/x - Step 3: Cross multiply
388,135,752.50x = 581,863,506.50 × 145,968,717.62 - Step 4: Simplify right side
388,135,752.50x = 84,933,869,870,042,384 - Step 5: Solve for x
x = 84,933,869,870,042,384/388,135,752.50 - Step 6: Final answer
x = 218,825,164.45
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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.